Overview

What's New

The MacBook Pro (Retina, 13-inch, Early 2015) features:

Processor: 2.7GHz, 2.9GHz, or 3.1GHz Intel dual-core processor

Retina display: 13.3-inch (diagonal) Retina display with higher efficiency LEDs
Memory: 8GB or 16GB on board, not user installable
Storage: 128GB, 256GB, 512GB, or 1TB flash storage
Graphics: Broadwell GT3 Integrated Graphics (IG)
Trackpad: Force Touch Trackpad technology

Diagnostics:

Apple Service Toolkit version 2 (AST 2)

Trackpad: The Trackpad Calibration Check must be performed after every repair.

The MacBook Pro (Retina, 13-inch, Late 2012, Early 2013, Late 2013, Mid 2014) features:

Processor:
For Late 2012 model: 2.5GHz or 2.9GHz Intel dual-core processor
For Early 2013 model: 2.6GHz or 3.0GHz Intel dual-core processor
For Late 2013 model: 2.4GHz or 2.6GHz Intel dual-core processor
For Mid 2014 model: 2.6GHz, 2.8GHz, or 3.0GHz Intel dual-core processor
Retina display: 13.3-inch (diagonal) Retina display (2560-by-1600 resolution, 227 ppi)
 Memory:
For Late 2012 and Early 2013 models: 8GB on board, not user installable
For Late 2013 model: 4GB, 8GB, or 16GB on board, not user installable
For Mid 2014 model: 8GB or 16GB on board, not user installable
Storage:
For Late 2012 and Early 2013 models: 128GB, 256GB, 512GB, or 768GB flash storage
For Late 2013 and Mid 2014 models: 128GB, 256GB, 512GB or 1TB flash storage
Expansion ports:
For Late 2012 and Early 2013 models: Two Thunderbolt ports up to 10 Gbps, two USB 3 ports (up to 5 Gbps),
one SD card slot, and one HDMI port (used to connect an HDTV or projector, extend a desktop, or mirror to an
external display)
For Late 2013 and Mid 2014 models: Two Thunderbolt 2 ports up to 20 Gbps, two USB 3 ports (up to 5 Gbps),
one SD card slot, and one HDMI port (used to connect an HDTV or projector, extend a desktop, or mirror to an
external display)
MagSafe 2 power adapter: 60W with MagSafe 2 straight-plug orientation
Product name on bottom case: The name “MacBook Pro” appears on the bottom case instead of on the base of the
display

For product configurations, refer to AppleCare Tech Specs at support.apple.com/specs/#macbookpro.

Important Service Considerations

This computer model’s design requires special service considerations:

Training: This computer should only be repaired by Apple-certified technicians. For more information, refer to article
HT205332: About AppleCare service certifications.
Battery Service: The battery is not a replaceable part. Never remove the battery from the top case. To replace a
battery, you must replace the top case.
Battery Safety: Before beginning any repair procedure, install the battery cover. For Late 2012 and Early 2013
models, remove the BMU interlock screw. For Late 2013, Mid 2014, and Early 2015 models, disconnect battery
connector. Refer to article TP890: Battery Safety Precautions.
Top Case:
For Early 2015 models: The top case includes the battery, BMU, keyboard, microphone, trackpad flex cable, and
trackpad. (Small removable parts such as screws, gaskets, flexures, and clutch screw covers are included in
replacement parts.) If the battery, keyboard, microphone, or trackpad must be replaced, you must replace the top
case. Refer to article TP1058: Battery Handling and Storage.
For Late 2013 and Mid 2014 models: The top case includes the battery, BMU, keyboard, microphone, and
trackpad. (Small removable parts such as screws, flexures, and clutch screw covers are included in replacement
parts.) If the battery, keyboard, microphone, or trackpad must be replaced, you must replace the top case. Refer
to article TP1058: Battery Handling and Storage.
For Late 2012 and Early 2013 models: The top case comes with the battery, BMU, keyboard, microphone, and
small removable parts such as Mylar BMU cover, screws, flexures, and clutch screw covers. If the battery,
keyboard, or microphone must be replaced, you must replace the top case. Refer to article TP923: Battery
Handling and Storage.
2D Bar Codes: This computer includes 2D bar codes that require service providers to have updated bar code
scanners. It is important to upgrade scanners to read 2D bar codes in order to enter part serial numbers in GSX. To
upgrade the Motorola DS6707 scanner, refer to article OP53: Bar Code Scanner Information and Configurations.
Wireless Card: The wireless card comes with a thermal pad attached to the underside. When lifting the card from the
logic board, check that the pad remains with the card. The thermal pad is available as a separate service part (923-
0150).
Interposer (Late 2012 and Early 2013 models only): The interposer is available as a separate service part (661-
7045). Use only ESD-safe nonconductive interposer tweezers (included in kit 076-1411) to remove, transfer, or install
the interposer. The only parts that require removal of the interposer are logic board assembly (with MagSafe, heat sink,
fan ducts, and fans attached), logic board, MagSafe, audio board, trackpad, and top case.
Right and Left Speakers: The right and left speakers are paired and only offered as a kit. If you need to replace one
speaker, you must replace both. Do not save a used, good speaker for another repair. The speakers are fine-tuned to
each other by the manufacturer and will not operate properly if mismatched.
Fan Ducts on Heat Sink: The fan ducts are rubber gaskets that wrap around the heat sink. The heat sink must be
removed to access the fans and replace the fan ducts.
Display Assembly: The display assembly comes with a set of left and right clutch screw covers.
Trackpad with Cable (Late 2012 and Early 2013 models only): The trackpad comes with the trackpad cable
attached. If the trackpad cable needs to be replaced, you must replace the trackpad.

Starter Kits

For Late 2013, Mid 2014, and Early 2015:

 Battery Safety Kit - refer to article OP685: About embedded battery safety
923-0705 Battery Cover, package of two
923-0731 Pentalobe Driver

For Late 2012 and Early 2013:

Battery Safety Kit - refer to article OP685: About embedded battery safety
076-1411 Battery Covers Kit (also includes the ESD-safe nonconductive interposer tweezers)
923-0731 Pentalobe Driver

Use Software Update

The MacBook Pro (Retina, 13-inch, Early 2015) ships with a model-specific version of OS X. Check Apple Support article
HT204319: Mac OS X versions (builds) for computers to make sure the system build is correct for this computer model.
Using Software Update, check for and apply the latest software and firmware updates.
Battery Safety Setup

Battery Safety Setup for MacBook and MacBook Pro (Mid 2012 and later)

Warning: Before servicing a MacBook or MacBook Pro computer, read and understand article OP24: Safely handling lithium
batteries and lithium battery-powered devices.

For information on how to set up your workstation, refer to article OP685: About embedded battery safety.
Battery Handling and Storage

Best Practices

The battery contains several soft battery cells. Do not press on the battery cells with your fingers, and do not handle the
battery pack in any way that might apply any physical pressure to these cells.

Always attach the battery cover and disconnect the battery immediately after removing the bottom case and before
beginning any repair. Check that both clips on the battery cover attach to the midwall of the top case.
Do not use a damaged battery cover. If the battery cover is damaged, replace it.
Only remove the battery cover and connect the battery right before replacing the computer’s bottom case. Keep the
battery cover on and the battery disconnected at all other times.
In the event a top case assembly with battery is dropped, DO NOT use the part. If the top case has been dropped,
replace it.

Battery Inspection

Refer to article OP693: Visual battery inspection for the latest visual inspection details.

Packaging a Top Case Assembly with Battery for Return

Important: Do not discard top case packaging!

The same cardboard box and inner packaging used to ship a known-good top case assembly with battery must be used
when returning the known bad board from the repair (KBB).
1. Verify packaging is in good condition and labels are present, legible, and intact. Verify box is well structured and strong.
2. If the box is in good condition but needs a packing list, print a new packing list from Apple Support article HT204643:
Prepare lithium batteries and devices powered by lithium batteries for shipping.
3. If the box is in poor condition, order a replacement box kit. The kit includes the outer cardboard box, foam frame, two
foam pads, labels, and an ESD-safe or plastic bag.
4. Reuse the protective battery cover from the original top case removal or order a new battery cover if needed.
5. Ensure that the protective battery cover is securely attached to the battery and the battery is disconnected. Install
battery cover and disconnect battery as soon as the bottom case is removed. Keep battery cover in place and the
battery disconnected for all subsequent part removals.
6. Find the battery serial number underneath the flap near the battery connector. Scan or copy the original battery serial
number when reporting the return of the top case assembly with battery to Apple.
 6.

7. Place top case with covered battery inside bag.

8. Fold over bag and seal it closed with yellow ESD sticker. (If sticker is not available, use tape.)
9. Place wrapped top case on bottom foam pad within inner foam frame inside cardboard box.
10. IMPORTANT: When placing wrapped top case into the box, make sure battery is face up and at the front opening of
the box.

11. Carefully place second foam pad over wrapped top case.
11.

12. Close box and seal it with tape - DO NOT USE staples.
13. Check that the Caution label and packing list are attached to the box.
14. Attach a shipping label and return top case assembly with battery using normal shipping procedures.
Keycap Replacement

Topic
Service packages of replacement keycaps are available for MacBook Pro (Retina, 13-inch, Late 2012 to Early 2015) and
MacBook Pro (Retina, 15-inch, Mid 2012 to Mid 2015). The packages allow you to replace individual keycaps rather than the
entire top case.

The following instructions explain how to remove and replace a keycap and scissor mechanism (plastic piece under keycap
that secures keycap to top case) on these computers:

MacBook Pro (Retina, 15-inch, Mid 2012)

MacBook Pro (Retina, 13-inch, Late 2012)
MacBook Pro (Retina, 13-inch, Early 2013)
MacBook Pro (Retina, 15-inch, Early 2013)
MacBook Pro (Retina, 13-inch, Late 2013)
MacBook Pro (Retina, 15-inch, Late 2013)
MacBook Pro (Retina, 13-inch, Mid 2014)
MacBook Pro (Retina, 15-inch, Mid 2014)
MacBook Pro (Retina, 13-inch, Early 2015)
MacBook Pro (Retina, 15-inch, Mid 2015)

If a keycap needs replacement due to accidental damage, such as a liquid spill, refer to OP14: Determining and quoting
accidental damage to Mac portables.

To help determine keyboard localization or keycap placement, see HT201794: How to identify keyboard localizations.

Notes:

Keycap kits are available for International English, U.S. English, and Japanese version keyboards.
A European Special Character kit is available with British (B), German (D), French (F), Danish (DK), Italian (T), Spanish
(E), and Swedish (S) specific keycap characters.
Note: To receive the proper keycaps to complete a single British, German, French, Danish, Italian, Spanish or
Swedish keyboard, order both the European Special Character Kit and the ISO English keycap kit. Neither kit by
itself contains all the keycaps necessary for a single localized keyboard.
Always shut down the computer before replacing a keycap.

Identifying Keycaps and Scissors

Eight types of keycap packages are offered based on region and keyboard type (Version D and Version S).

Part Keyboard
Language
Number Type
923-0065 Version D ANSI English
923-0130 Version S ANSI English
B923-0065 Version D ISO English
B923-0130 Version S ISO English
J923-0065 Version D Japanese
J923-0130 Version S Japanese
ZM923- European Special
Version D
0065 Character Kit
ZM923- European Special
Version S
0130 Character Kit

Although the scissors for both versions D and S keyboards function the same, they have a slightly different design. Be sure
to match only Version D keycaps to Version D scissors/keyboards and Version S keycaps to Version S scissors/keyboards.

The photos below identify version D and version S scissors.

Version D scissors
Version S scissors

Keycap Map

The following illustrations summarize the differences in removing keycaps on the MacBook Pro (Retina, Mid 2012) keyboard.
For detailed instructions, see the Procedure section below.

Yellow: No stabilizer bar under key cap

Orange: Hooked stabilizer bar under key cap (two hooked bars under Space Bar)
Stripes:
No Stripes: Lift key from the lower corners
Stripes: Lift key from the upper corners

ANSI English Key Layout

ISO English Key Layout

ISO Japanese Key Layout

Procedure

Use the following steps to remove a defective keycap and replace it with a new keycap and scissors from the service keycap
package. When replacing a keycap, replace the scissors below it.

Because the design of the keycap and scissor mechanism differs depending on the shape of the key, the procedure is
divided into three parts:

1. Square keys and small rectangular keys (for example, letters A–Z, numbers, punctuation, function keys, and arrow
keys). These use one scissor mechanism beneath the key.
2. Rectangular keys (for example, Shift, Delete, and Return). These use one or two scissor mechanisms and one
stabilizer bar (no stabilizer bar on bottom row for rectangular keys)
3. Space bar. This uses two scissor mechanisms and two metal stabilizer bars.

Note on illustrations: Most of the steps are illustrated with version D scissors. However, the steps are the same for version
S scissors except where indicated.

Important: Shut down the computer before replacing a keycap.

Removing and Replacing Square Keys and Small Rectangular Keys

1. Pry the key up from the lower edge—first at one corner and then at the other. Exception: Pry the Up Arrow keycap
from the upper edge.
2. Pry and remove the scissor mechanism from the keycap well.

3. Check the rubber dome and raised metal areas inside the keycap well.

When the rubber dome is pressed and released, it should spring back upright. If the rubber dome is off center or
damaged, replace the top case.
If the metal hook that holds the slider bar of the scissor mechanism is bent, try to bend it back to a uniform 90-degree
angle. If it is bent or broken beyond repair, replace the top case.
If the two metal ears are bent, use needlenose pliers to straighten them. If either or both ears are broken beyond repair,
replace the top case.

Note: To install the replacement scissor mechanism, you must first remove it from the replacement keycap.

4. Position the pointed end of a black stick under both plastic layers on the pin side of the scissors. Pry up and remove
the scissors from the keycap.
5. To install the replacement scissors in the keycap well, position the scissors so that the smooth side faces up.
Holding the scissors closed, fit the two small square openings in the scissors onto the two metal hooks at the lower
edge of the of the keycap well.

6. Press and slide the scissors up until the two rectangular openings in the scissors fit over the two metal hooks at the
upper edge of the keycap well.

7. Use a black stick to raise and lower the scissor mechanism to make sure it moves freely.

8. Slide the upper edge of the keycap into the keycap well. Then, press down on the top of the key until you feel it snap
into place.
 9. Check the key from all angles to make sure it is uniformly flat. Press and release the key repeatedly to verify that it
springs back each time.

Removing and Replacing Rectangular Keys (except Space bar)

Note: All rectangular keys with a stabilizer bar use one hooked bar.

1. Pry the Space bar from the lower two corners, and lift it up.

2. Detach the stabilizer bar from the left and right openings in the two metal ears in the keycap well.

3. Remove the original scissors and install the replacement scissors. Refer to steps 2–6 under Removing and
Replacing Square Keys and Small Rectangular Keys.

4. With the stabilizer bar installed in the replacement keycap, rotate the stabilizer bar approximately 90 degrees out
from the key. Then, insert the ends of the bar into the openings in the metal ears in the keycap well.

5. Lower the key over the keycap well and press down on the top of the key until it snaps into place.

6. Check the key from all angles to make sure it is uniformly flat. Press and release the key repeatedly to verify that it
springs back each time.

Removing and Replacing the Space Bar

1. Pry the Space bar from the lower two corners and lift it a short distance.
2. Using a black stick, separate the lower stabilizer bar from the keycap.

3. With the lower edge loosened, pry the Space bar from the upper edge. Use a black stick, if necessary, to tilt up and
remove the keycap.

Note: To fully remove the keycap, you may need to pry it from the top stabilizer bar. Be sure to remove both stabilizer
bars from the keycap well.

4. Remove the original scissors and install the replacement scissors. Refer to steps 2–7 under Removing and
Replacing Square Keys/Small Rectangular Keys.

Version D Space Bar Replacement

1. Orient the replacement Space bar so that the slider hooks on the underside of the key are at the lower edge of the
key.

2. Rotate the lower stabilizer bar on the Space bar approximately 90 degrees out from the key and insert the ends of
the bar into the two lower metal ears in the keycap well.
3. Insert the ends of the upper stabilizer bar into the two upper metal ears in the keycap well and lower the keycap over
the well.

4. Press and slide your fingers along the Space bar until you hear the clips on the top and bottom edges snap into
place.

5. Check the key from all angles to make sure it is uniformly flat. Press and release one corner of the key. If the key is
installed correctly the opposite corner should respond at the same level (not tilted higher or lower).

Version S Space Bar Replacement

1. Orient the replacement Space bar so that the slider hooks on the underside of the key are at the lower edge of the
key.

2. Using a black stick, remove the top stabilizer bar.

3. Hook the top stabilizer bar into the upper two metal ears in the keycap well.

4. Rotate the lower stabilizer bar on the Space bar approximately 90 degrees out from the key and hook the ends of the
bar into the two lower metal ears in the keycap well.

5. Lower the upper edge of the keycap down into the keycap well.

6. Press and slide your fingers along the Space bar until you hear the clips on the top and bottom edges snap into
place.
Serial Number Locations

Serial Number Locations

Note: Bar code readers can be used to read serial numbers inside the computer. For information on the serial number
format, refer to article OP51: Frequently Asked Questions and Answers Concerning Apple’s New Serial Number Format .

System Serial Number

The system serial number is located in two places on the computer: on the bottom case and on the top case frame.

Bottom case: Turn over the computer to see the system serial number etched on the bottom case near the hinge.

Top case frame:

IMPORTANT: Before removing the bottom case:

Always wear ESD wrist strap and take precautions to avoid ESD.
Always attach battery cover and disconnect the battery immediately after removing bottom case.

MacBook Pro (Retina, 13-inch, Late 2013 and Mid 2014) Serial Number Location

With the bottom case removed, find the system serial number label affixed to the bottom center of the top case frame just
below the battery description label.
MacBook Pro (Retina, 13-inch, Early 2015) Serial Number Location

With the bottom case removed, find the system serial number label affixed to the top case frame under the right speaker.
Transferring the System Serial Number

When replacing a bottom case, retain the user’s original bottom case until the repair is complete. Before installing EITHER a
replacement top case or bottom case, use a fine-tipped permanent marker to write the original system serial number inside
the bottom case.
Battery Serial Number

The battery serial number is located underneath the flap near the battery connector. Copy the original battery serial number
when reporting a top case return to Apple.

Display Assembly Serial Number

The display’s serial number is located on the underside of the embedded DisplayPort (eDP) cable.
Visual/Mechanical Inspection (VMI) Guide for Mac Computers - Table of
Contents

Visual/Mechanical Inspection (VMI) Guide for Mac Computers - Table of Contents

Mac Displays
Liquid Damage
Power Adapters
USB-C Cables
Liquid Contact Indicators

Liquid Contact Indicators

Liquid Contact Indicators (LCIs) have been added to specific locations on current Mac portables to help determine if a
computer has been exposed to liquid. Normally represented by small white dots, the LCIs turn red when they have come in
contact with liquid, such as an accidental spill.

Important: The LCI is a tool that helps technicians identify whether or not a product has been in contact with liquid.
Technicians should not rely solely on this tool, but should perform a thorough examination for signs of liquid contact, such as
corrosion.

For more information, refer to article HT204769: Mac computers: About liquid contact indicators (LCIs) and warranty
coverage.

Key

Circle: LCI is visible with bottom case removed

Star: LCI is hidden (under a module or cable)

MacBook Pro (Retina, 13-inch, Late 2012 and Early 2013)

MacBook Pro (Retina, 13-inch, Late 2013 and Mid 2014)

MacBook Pro (Retina, 13-inch, Early 2015)
LCD Pixel Anomalies

When displaying a single color over the screen area, the LCD panel might show one or more pixels that are not properly lit.

LCD technology uses rows and columns of addressable points (pixels) that render text and images on the screen. Each pixel
has three separate subpixels—red, green, and blue—that allow an image to render in full color. Each subpixel has a
corresponding transistor responsible for turning that subpixel on and off.

Depending on the display size, there can be thousands or millions of subpixels on the LCD panel. For example, the LCD
panel used in the iMac (27-inch, Late 2013) has a display resolution of 2560 by 1440, which means that there are 3.7 million
pixels. Each pixel is made up of a red, a green, and a blue subpixel, resulting in over 11 million individual picture elements on
the 27-inch display. Occasionally, a transistor may not work perfectly, which results in the affected subpixel remaining off
(dark) or on (bright). With the millions of subpixels on a display, it is possible to have a low number of such transistors on an
LCD. In some cases, a small piece of dust or other foreign material may appear to be a pixel anomaly. Apple strives to use
the highest quality LCD panels in its products; however, pixel anomalies can occur in a small percentage of panels.

In some cases, pixel anomalies are caused by a piece of foreign material that is trapped somewhere inside the display or on
the front surface of the display or glass panel. Foreign material is typically irregular in shape and is usually most noticeable
when viewed against a white background.

For any computer, foreign material on the outer surface of the display or glass panel can be easily removed using a
lint-free cloth.
For iMacs only, foreign material trapped between the glass panel and display should be removed by an Apple
Authorized Service Provider or Apple Retail Store.
For any computer, foreign material trapped inside the display can only be resolved by replacing the entire display
assembly.

To determine if the display has an acceptable number of pixel anomalies, see the appropriate article:

HT202025: About LCD display pixel anomalies for Apple products released in 2010 and later
HT201613: About LCD display pixel anomalies for Apple products released before 2010
General Troubleshooting

Update Software and Firmware

Important: Before you begin troubleshooting, ensure the correct version of macOS is installed, and check for and apply the
latest software and firmware updates. Computers sometimes exhibit symptoms that indicate the wrong version of macOS
system software is installed. Check article HT204319: macOS versions and builds included with Mac computers to make
sure system build is correct for this computer model.

Firmware is the name given to software that is written into memory circuits such as flash memory, that will hold the software
code indefinitely, even when power is removed from the hardware. Firmware on Intel Mac computers is designed to be
updated if necessary by running the macOS Software Update check (available in the Apple ( ) menu) while the computer is
connected to the Internet.

For more information about firmware updates, refer to article HT201518: About EFI and SMC firmware updates for Intel-
based Mac computers.

Troubleshooting Techniques

For more information, go to ATLAS and enter “troubleshooting” in the search field.

Hardware vs. Software

To isolate a hardware issue from a software issue, refer to article HT203161: Isolating issues in macOS.

To troubleshoot a software issue, refer to the following articles:

HT201516: How to troubleshoot a software issue

HT201861: About incompatible software on your Mac
HT204323: If a flashing question mark appears when you start your Mac
HT204904: How to reinstall macOS
HT202574: Mac mini (Late 2012 and later), iMac (Late 2012 and later): About Fusion Drive
Quick Check Procedures

Resetting the System Management Controller (SMC)

The System Management Controller (SMC) is a chip on the logic board that controls all power functions. If the computer is
experiencing any power issue, such as not starting up, not displaying video, sleep issues, or fan noise issues, resetting SMC
may resolve it.

For more information and instructions to reset the SMC on different computer models, refer to article HT201295: Reset the
System Management Controller (SMC) on your Mac.

Note for iMacs: If the power button is pressed while inserting the power cord, the iMac will enter a mode in which the fans
run at full speed. For more information, refer to article HT204463: iMac: Fans run at full speed after computer turns on.

Resetting Non-Volatile RAM (NVRAM)

NVRAM stores certain system and device settings in a location that macOS can access quickly. Exactly which settings are
stored in the computer’s NVRAM varies depending on the type of computer as well as the types of devices and drives
connected. To reset NVRAM:

1. Shut down the computer.

2. Locate the following keys on the keyboard: Command, Option (Alt), P, and R. You will need to hold these keys down
simultaneously in Step 4.
3. Press power button.
4. Immediately press and hold Command-Option-P-R keys.
Important: You must press this key combination before the gray screen appears.
5. Hold down keys until computer restarts, and you hear startup chime a second time.
Note: For MacBook Pro (Late 2016 and 2017) and MacBook (Retina, 12-inch, 2017), hold down keys for at least 20
seconds. There is no startup chime.
6. Release keys.

Note: After resetting NVRAM, you might need to reconfigure settings for speaker volume, screen resolution, startup disk
selection, and time zone information.

For more information, refer to article HT204063: How to Reset NVRAM on your Mac.

Starting Up in Safe Mode

Safe Mode (sometimes called Safe Boot) is a way to start up a Mac so that it performs certain checks and prevents some
software from automatically loading or opening. These changes can help resolve or isolate certain issues on the startup disk.

Follow these steps to start up into Safe Mode:

1. Be sure the computer is shut down.

2. Press the power button.
3. Press and hold the Shift key.
Note: The Shift key should be pressed as soon as possible after the power button is pressed.
4. Release the Shift key when you see the Apple logo appear on the screen. After the Apple logo appears, it may take
longer than usual to reach the login screen. This is because the computer is performing a directory check as part of
Safe Mode.
5. To leave Safe Mode, restart the computer without pressing any keys during startup.

For more information, refer to article HT201262: Use Safe Mode to isolate issues with your Mac.
Sleep Status Tips

The following portable Mac models do not have a sleep LED:

MacBook Air (Late 2010 and later)

MacBook Pro (Retina, Mid 2012 to Mid 2015)

To troubleshoot without a sleep LED:

Connect a USB device that has a power-on or activity LED. As power is restored to the USB and the system wakes
from sleep, the LED lights up.
Press Caps Lock key multiple times to wake the computer from sleep.
Open display and press an alphanumeric key to wake the computer from sleep.
A computer that has been asleep for an extended period can consume the remaining charge of the battery. Restore
power to the computer with known-good power adapter, and check that the MagSafe indicator light shows an in-
progress battery charge. The computer will boot from a hibernation file and start up from where it left off.
Resetting SMC instantly shuts down the computer, with some side effects:
If the computer is in sleep mode, it will reboot from a hibernation file.
If the computer is booted to OS X or macOS during the SMC reset, data from open applications can be lost.
If the computer is already shut down, there will be no side effects.

Note: Look for the MagSafe indicator light to momentarily switch from off to green as SMC is reset and re-establishes
communication with power adapter, then change from green to orange if the battery needs a charge.
Diagnostic Software

Depending on the model, use the following diagnostics:

Apple Service Diagnostic (ASD) Apple Hardware Test (AHT)

MacBook Pro (Retina, 13-inch, Late 2012) 3S155 3A244
MacBook Pro (Retina, 13-inch, Early 2013 3S155 3A244
MacBook Pro (Retina, 13-inch, Late 2013) 3S162 n/a
MacBook Pro (Retina, 13-inch, Mid 2014) 3S162 n/a

Important: For models introduced before June 2013, use Apple Hardware Test (AHT). For models introduced in June 2013
or later, use Apple Diagnostics. For more information on Apple Diagnostics, refer to article HT202731: Using Apple
Diagnostics.

Apple Service Toolkit (AST)

AST is a suite of diagnostic tools that checks Intel-based Mac hardware components, and provides detailed diagnostic logs
for review. AST runs on a local server, managing multiple Ethernet clients via NetBoot.

Note: As of March 2015, all of these models can use AST, but not AST 2.

For more information, refer to:

OP476: Latest Apple Service Toolkit download links and documentation

TP586: AST Reference Guide Table of Contents

Mac Resource Inspector (MRI)

MRI, which is part of AST, is a quick triage tool that checks for the presence of hardware and reports sensor readings.
Sensors are located on a variety of parts, including cables, fans, storage devices, power supply, display panel, and logic
board. Use MRI to help isolate failures and avoid unnecessary part replacements. MRI complements ASD, which is a more
in-depth repair verification tool.

Note: If all AST tests pass and a component is still suspected of fault, then verify with other diagnostic tools.
Diagnostic Software

Apple Service Toolkit 2 (AST 2)

AST 2 is a cloud-based diagnostic system to help technicians triage and verify repairs for iOS devices and Mac computers
released in June 2014 and later, except for MacBook Pro (Retina, Mid 2014). With AST 2, technicians initiate diagnostics
wirelessly on a user’s device using a Diagnostic Console (a web application on a Mac or iPad). Technicians are also able to
view diagnostic results on the Diagnostic Console.

For more information, refer to:

OP476: Latest Apple Service Toolkit download links and documentation

TP1105: AST 2 for Mac Reference Guide - Table of Contents
TP1118: AST 2 for Mac Reference Guide - Table of Contents (Retail)

Apple Diagnostics

Apple Diagnostics is a customer-facing software tool that is built-in to all Mac computers released in June 2013 and later.

For more information, refer to:

HT202731: How to use Apple Diagnostics on your Mac

HT203747: Apple Diagnostics: Reference codes
Thermal and Electrical Sensors

Reference the tables below for MacBook Pro (Retina, 13-inch, Late 2012, Early 2013, Late 2013, Mid 2014, Early
2015) sensor information.

Thermal Sensor Table

SMC Diagnostic
Location Repair Suggestion
Name Name
Battery Excessive internal battery temperature, damaged interposer board,
TB0T Battery
TS_MAX or open/damaged BMU or logic board contacts.
Excessive internal battery temperature, damaged interposer board,
TB1T Battery Battery TS1
or open/damaged BMU or logic board contacts.
Excessive internal battery temperature, damaged interposer board,
TB2T Battery Battery TS2
or open/damaged BMU or logic board contacts.
Logic Board, near flash Excessive air intake area temperature or logic board sensor near air
TA0P Fanwell Airflow
storage intake is damaged or disconnected from SMC.
CPU die -
TC0C Logic Board, CPU Excessive CPU temperature or CPU sensor is damaged.
Digital Core 0
Excessive CPU temperature or logic board sensor near CPU is
TC0P Logic Board, near CPU CPU Proximity
damaged or disconnected from SMC.
CPU die -
TC1C Logic Board, CPU Excessive CPU temperature or CPU sensor is damaged.
Digital Core 1
Excessive heat sink fin stack temperature or fin stack proximity
Logic Board, near Left Fin Left Fin Stack
Th1H sensor on logic board is damaged. Verify fan is operational for
Stack Proximity
proper cooling.
Excessive heat sink temperature or logic board sensor is damaged
Logic Board, near Right Fin
THSP Thunderbolt Die or disconnected from SMC. Verify fan is operational for proper
Stack
cooling.
Excessive memory area temperature or logic board sensor near
TM0P Logic Board, near Memory DDR3 Proximity
memory is damaged or disconnected from SMC.
Logic Board, Platform Excessive PCH temperature or internal CPU sensor is damaged or
TPCD PCH Die
Controller Hub (PCH) disconnected from SMC.
Excessive internal or enclosure temperature, IPD flex cable
Ts0P Trackpad Palm Rest
damage, or disconnected from logic board.
Excessive internal or enclosure temperature, IPD flex cable
Ts1P On trackpad actuator Actuator
damage, or disconnected from logic board.
Excessive wireless card temperature or connections to wireless
On I/O Board, bottom side, Wireless
Tw0P card via I/O board and I/O flex cable are damaged or disconnected
near Thunderbolt connector Proximity
from logic board and SMC.

Electrical Sensor Table

SMC Diagnostic
Location General Description Repair Suggestion
Name Name
LCD
Logic Out of range LCD backlight current found or open signal to
IBLC Current: LCD Backlight Backlight
Board SMC.
Current
Logic CPU Icore
IC0C Current: CPU Core Out of range CPU current found or open signal to SMC.
Board
Logic Current: CPU High CPU
IC0R Out of range CPU current found or open signal to SMC.
Board (Core/AXG/DDR3/IO/SA) Computing
Logic
IC1C Current: PCH Core 1.05V PCH Icore Out of range current to PCH found or open signal to SMC.
Board
Logic Current: CPU Core
IC2C CPU IMON Out of range CPU current found or open signal to SMC.
Board (IMON)
Logic
ICMC Current: Camera S2 Camera Out of range camera current found or open signal to SMC.
Board
 Out of range DC-IN power current, defective MagSafe board or
Logic
ID0R Current: DC-In, MagSafe DC-IN stuck pins or open signal to SMC. Connect correct model
Board
MagSafe adapter for battery charging.
Out of range Thunderbolt controller current found or open signal
Logic Current: Thunderbolt TBT to SMC. Disconnect Thunderbolt device(s) to determine logic
IHSC TBT
Board (Default) board fault and/or substitute Thunderbolt device and cable to
isolate fault.
Logic LCD
ILDC Current: LCD Panel Out of range LCD panel current found or open signal to SMC.
Board Current
Logic Current: LPDDR 1.2V DDR3
IM0C Out of range memory current found or open signal to SMC.
Board (CPU & Memory) DRAM Only
Logic Current: CPU LPDDR DDR3
IM1C Out of range memory current found or open signal to SMC.
Board 1.2V DRAM Only
Logic Current: LPDDR DDR3
IM2C Out of range memory current found or open signal to SMC.
Board 1.8V (Memory) DRAM Only
Logic Other
IO3R Current: Other 3.3V High Out of range I/O controller current found or open signal to SMC.
Board <3.3V>
Logic
IO5R Current: Other 5V High Other <5V> Out of range I/O controller current found or open signal to SMC.
Board
Logic Out of range battery current found or open signal to SMC. Verify
IPBR Current: Battery (BMON) BATTERY
Board BMU Interconnect Screw is installed.
Logic 3.3V S0
IR3C Current: 3.3V S0 Out of range logic board current found or open signal to SMC.
Board Rail Current
Logic 5V S0 Rail
IR5C Current: 5V S0 Out of range logic board current found or open signal to SMC.
Board Current
Out of range SSD current found or open signal to SMC.
Logic
ISDC Current: SSD SSD 3.3V Disconnect SSD/flash storage to verify logic board OK and/or
Board
substitute SSD to isolate fault.
Trackpad
Logic Current: Trackpad Out of range trackpad actuator current found or open signal to
ITPC Actuator
Board Actuator SMC.
Current
Logic
VC0C Voltage: CPU Core CPU Vcore Out of range voltage to CPU found or open signal to SMC.
Board
Out of range voltage from MagSafe 2 found or open signal to
Logic
VD0R Voltage: DC In (AMON) DC In SMC. Use correct MagSafe 2 AC power adapter and verify
Board
connector pins are clean and make good electrical connection.
Out of range voltage from battery or charge circuity found on
Logic PBUS logic board or open signal to SMC. Use correct MagSafe 2 AC
VP0R Voltage: P-Bus
Board Voltage power adapter and verify connector pins are clean and make
good electrical connection. Recharge battery.
Trackpad
Logic Voltage: Trackpad Out of range trackpad actuator voltage found or open signal to
VTPC Actuator
Board Actuator SMC.
Voltage
Out of range light detection or open signal from display
clamshell connection (camera cable) to logic board. Possible
interaction with trackpad temperature sensor (TS0P).
Disconnect trackpad and retest Ambient Light Sensor (ALS) to
logic board connections and communication with SMC. There
Display Light Detection near
ALSL ALS exists an unlikely event that logic board motion sensor
Assembly FaceTime HD Camera
Accelerometer (M0_X) can interfere with ALS. If logic board
accelerometer is also failing, disconnect camera cable to
remove ALS and test to see if accelerometer still fails. Substitute
known-good logic board or display clamshell to determine if fault
is with logic board or display.
Temperature Concerns

The normal operating temperature of this computer is well within national and international safety standards. Nevertheless,
users may be concerned about generated heat. To prevent an unnecessary repair, compare a user's computer to a similar
running model under similar load, if available at the repair site.

For more information, refer to articles

HT201640: Mac notebooks: Operating temperature

HT203184: See how apps affect Mac performance, battery runtime, temperature, and fan activity
HT202179: About fans and fan noise in your Mac
Block Diagram

Block Diagram

Refer to this diagram to see how modules are interrelated.

Block Diagram

Block Diagram for MacBook Pro (Retina, 13-inch, Early 2015)

Refer to this diagram to see how modules are interrelated.

Functional Overview

Functional Overview

Refer to this diagram for symptoms related to logic board connectors.

1 = Right USB port

USB device not found

Controller not recognized
USB driver issues
USB power issues

2 = HDMI video

HDMI controller not recognized

No HDMI video
No HDMI audio
No power from HDMI port

3 = SD card slot

No SD card recognized
SD card insert issues

4 = Wi-Fi + Bluetooth antenna connectors

No/poor Wi-Fi reception

Drops Wi-Fi connection
No pairing with Bluetooth devices
Drops Bluetooth connection

5 = Wireless Card

Wi-Fi service cannot be enabled

Bluetooth service cannot be enabled

6 = Fan

Fan not running

Noisy fan perception
 Intermittent shutdown

7 = FaceTime HD camera & Ambient Light Sensor (part of display assembly)

No camera video, blurred or monochrome video

No dimming of display in low-light conditions
Keyboard backlight cannot be enabled

8 = MagSafe 2 (under logic board)

No power LED
No battery charge

9 = Power-on pads

Power on logic board if power button cannot

10 = Flash storage card

Flash storage device not visible in System Information

OS boot failure from internal flash storage

11 = Keyboard backlight flex cable (part of top case)

No keyboard backlight

12 = LCD/backlight

No video on LCD
No display backlight
Open backlight fuse

13 = Thunderbolt ports

Thunderbolt device not found

Thunderbolt controller not recognized
Thunderbolt driver issue
Thunderbolt power issues

14 = Left USB port

USB device not found

Controller not recognized
USB driver issues
USB power issues

15 = Microphone

No internal audio input (with Internal Microphone selected in Sound Input Preferences)

16 = Audio port (soldered on logic board)

No external analog audio/digital optical output

No headset controls or microphone input

17 = Sleep sensor (on bottom side of logic board)

No sleep when display closed

No video to internal display, but video to external display if connected (sensor stuck)

18 = Left speaker

No or distorted audio from left speaker

19 = Battery

Not running when on battery only

Not charging (verify with correct model of power adapter)
X symbol for battery in menu bar
Battery removed - extended time before boot chime and fan running at full speed

20 = Keyboard flex cable

 No power on from keyboard
Non-responsive keys

21 = Onboard memory (soldered on logic board)

Three beep tones on startup

Freeze or kernel panic
Horizontal video lines

22 = Trackpad/trackpad button/thermal sensor

No multi-touch or cursor movement

No click action
Trackpad thermal sensor input missing - fan running at full speed

23 = I/O flex cable

No right USB power

No HDMI video
No SD card slot

24 = Right speaker

No or distorted audio from right speaker

25 = I/O coax cable (between I/O board and logic board connector)

Right USB port issues

No HDMI video
No SD card slot
Functional Overview

Functional Overview

Refer to this diagram for symptoms related to MacBook Pro (Retina, 13-inch, Early 2015) logic board connectors.

1 = Right USB port

USB device not found

Controller not recognized
USB driver issues
USB power issues

2 = HDMI video

HDMI controller not recognized

No HDMI video
No HDMI audio
No power from HDMI port

3 = SD card slot

No SD card recognized
SD card insert issues

4 = Wi-Fi + Bluetooth antenna connectors

No/poor Wi-Fi reception

Drops Wi-Fi connection
No pairing with Bluetooth devices
Drops Bluetooth connection

5 = Wireless card

Wi-Fi service cannot be enabled

Bluetooth service cannot be enabled

6 = Fan

Fan not running

Noisy fan perception
Intermittent shutdown
7 = FaceTime HD camera & Ambient Light Sensor (part of display assembly)

No camera video, blurred or monochrome video

No dimming of display in low-light conditions
Keyboard backlight cannot be enabled

8 = MagSafe 2 (under logic board)

No power LED
No battery charge

9 = Power-on pads

When shorted with a flat-blade screwdriver, these pads on logic board will turn on computer if power on button cannot

10 = Flash storage card

Flash storage device not visible in System Information

OS boot failure from internal flash storage

11 = Keyboard backlight flex cable (part of top case)

No keyboard backlight

12 = LCD/backlight

No video on LCD
No display backlight
Open backlight fuse

13 = Thunderbolt ports (2)

Thunderbolt device not found

Thunderbolt controller not recognized
Thunderbolt driver issue
Thunderbolt power issues

14 = Left USB port

USB device not found

Controller not recognized
USB driver issues
USB power issues

15 = Microphone

No internal audio input (with Internal Microphone selected in Sound Input Preferences)

16 = Audio port (soldered on logic board)

No external analog audio/digital optical output

No headset controls or microphone input

17 = Sleep sensor (on bottom side of logic board)

No sleep when display closed

No video to internal display, but video to external display if connected (sensor stuck)

18 = Left speaker

No or distorted audio from left speaker

19 = Battery

Not running when on battery only

Not charging (verify with correct model of power adapter)
X symbol for battery in menu bar
Battery removed - extended time before boot chime and fan running at full speed

20 = Keyboard flex cable

 Will not turn on from keyboard
Non-responsive keys

21 = Onboard memory (soldered on logic board)

Three beep tones on startup

Freeze or kernel panic
Horizontal video lines

22 = Trackpad flex cable

No Multi-Touch or cursor movement from built-in trackpad

No click action from built-in trackpad
Trackpad thermal sensor input missing - fan running at full speed

23 = I/O flex cable (between I/O board and logic board connector)

Right USB port issues

No right USB power
No HDMI video
No SD card slot
Wi-Fi service cannot be enabled
Bluetooth service cannot be enabled

24 = Right speaker

No or distorted audio from right speaker

25 = I/O coax cable (between I/O board and logic board connector)

Right USB port issues

No right USB power
No HDMI video
No SD card slot
Wi-Fi service cannot be enabled
Bluetooth service cannot be enabled
Logic Board Power-On Pads

If troubleshooting requires a need to start up a MacBook Pro (Retina, 13-inch, Late 2013, Mid 2014, or Early 2015) using the
power-on pads, follow these steps:

1. Remove the bottom case.

2. Visually locate power-on pads on logic board.
3. Using a jeweler's flat-blade screwdriver, touch power-on pads to power on the logic board.
Caution: Avoid touching anything other than the two (2) power-on pads. Doing so could damage the logic board.
4. Listen for startup sound and/or fan operation to confirm power turns on.
Becoming Qualified for MacBook Pro (Retina, 13-inch, Late 2012 to Early
2015) Repairs

Overview

There may be additional requirements to service any of the following products:

MacBook Pro (Retina, 13-inch, Late 2012)

MacBook Pro (Retina, 13-inch, Early 2013)
MacBook Pro (Retina, 13-inch, Late 2013)
MacBook Pro (Retina, 13-inch, Mid 2014)
MacBook Pro (Retina, 13-inch, Early 2015)

Some technicians must pass the following Service Qualification Exam in addition to the Apple Certified Mac Technician
(ACMT) exams:

MacBook Pro (Retina, 13-inch, Late 2012 to Early 2015) Qualification Exam (9L0-S03)

Note: Passing this one exam will qualify technicians to service all models listed above.

This requirement ensures that technicians will service these models correctly and provide users with the best possible
experience.

Important:

Technicians who have passed any previous version of the 9L0-S03 exam will be automatically qualified to service all
models of MacBook Pro (Retina, 13-inch). They do not need to retake the exam.
Technicians who passed previous exam versions are expected to review the most up to date service training course for
MacBook Pro (Retina, 13-inch) before attempting a repair.
Technicians with certain ACMT certifications are not required to take this exam, but may need to meet other
requirements. See the “Additional Resources” section below for more information.

Additional Resources

For more detailed information about certifications and training, see article HT205332: About AppleCare Service Certifications.

Questions about exams or online course can be addressed to svc.trng@apple.com.

Trackpad Calibration Check

For video instruction, refer to article SV279: Force Touch Trackpad Calibration Check Video.

Required tools:

Weight Placement Rubber Template (923-00555)

MacBook (Retina, 12-inch, Early 2015, Early 2016, and 2017)

Weight Placement Rubber Template (923-01316)

MacBook Pro (13-inch, 2016 and 2017, Two Thunderbolt 3 Ports)
MacBook Pro (13-inch, 2016 and 2017, Four Thunderbolt 3 Ports)

Weight Placement Rubber Template (923-00599)

MacBook Pro (Retina, 13-inch, Early 2015) and (Retina, 15-inch, Mid 2015)

Weight Placement Rubber Template (923-01317)

MacBook Pro (15-inch, 2016 and 2017)

Note: Weight Placement Rubber Templates come in a pack of three. If the edges start to curl, it is necessary to order a new
pack.

200g and 800g weights (923-00462)

Steps:

To verify that the trackpad is responding as expected, the technician must run the Trackpad Calibration Check after every
repair or whenever the computer has been reassembled.
Note: It is recommended to also run the Trackpad Response test after a top case with keyboard has been replaced, or if the
user is having issues related to trackpad functionality.

1. Place the Weight Placement Rubber Template on the trackpad before launching the test in AST 2. This establishes the
correct baseline for the weights.

Important: The Weight Placement Rubber Template does not need to be taped to the top case. Tape may cause inaccurate
test results.

2. Launch AST 2. In Diagnostic Console, select Trackpad Calibration Check from the list of diagnostic suites. For more
information on AST 2, refer to article TP1279: AST 2: Supported Products and Tests.

Caution: The Trackpad Calibration Check is very sensitive to external disturbances. The test should be run on a flat surface.
Do not run the diagnostic on a bench where other technicians are working. To avoid interfering with the results, be sure to
place weights down gently on a separate surface while running the diagnostic. If the computer is bumped or jostled while the
diagnostic is running, the technician will have to begin the test again.
3. The diagnostic suite consists of several stages. The first stage of the suite is the Force Check, which is interactive and
requires the technician to place the 200g and 800g weights as indicated. The blue dot will indicate where to place each
weight on the trackpad. The text at the bottom of the screen will indicate which weight to use at each step. The dot will turn
green when it is time to lift the weight from the trackpad.
4. The next stage is the Actuator Check. During this stage, the trackpad will make clicking sounds while the actuator is
tested. If any issues with the actuator are identified, the test may need to proceed to the next stage, which is the Actuator
Calibration. The trackpad will continue to make clicking sounds while the actuator is calibrated. During this process, the unit
under test (UUT) will display the screen shown below.

5. If no issues are found, the screen will look like the image below. The trackpad calibration is verified.
6. If issues were found in the Actuator Check, the Actuator Calibration, or the Force Check, the screen will look like the
image below and the suite should be run again. If the computer fails a second time, a top case with keyboard replacement is
recommended.
Connector Types on Logic Board

Interposer, MacBook Pro (Retina, 13-inch, Late 2012 and Early 2013)

Only move interposer with the ESD-safe nonconductive interposer tweezers. Do not use other tweezers or other tools.
When placing tweezer tips, do not touch or brush against gold pins on interposer.
When temporarily removing interposer, place it in the clean compartment of a screw tray.
If interposer appears intact, reuse it.
Do not touch gold pads on logic board or underside of Battery Management Unit (BMU).
Do not clean gold pads.
Keep new interposer in shipping carrier until installation.
Inspect interposer for damage such as missing/bent pins or lint/debris caught between the pins.
If you need to replace the interposer, return used interposer in same shipping carrier that held the replacement
interposer.
For full details, refer to article RP1020: Interposer.

Example:

Interposer

Low-Profile Solid Platform Flex

Disconnect connector vertically in one motion. The connectors are susceptible to bent pins if rocked side-to-side or
inserted improperly.
Reconnect connector by first aligning it over receptacle. Keep connector level with board and press down evenly.

Example:

I/O flex cable

audio board cable
SSD (or flash storage) cable

Low-Profile Solid Platform Flex Video

Vertical Insert (JST)

Slide black stick under cable. Stabilize connector with your finger and use black stick as a platform to disconnect cable
vertically.
Reconnect connector by first aligning its grooves to the pins in the receptacle. Keep connector level with board and
slightly tip front side into receptacle.
Check that connector is level (not tipped up) and is fully seated.

Example:

speakers

Vertical Insert (JST) Video

Locking Lever

Flip up lever 90 degrees and evenly disconnect cable.

To ease pressure on cable connection, you can adhere ESD-safe Kapton tape to the cable to use as a pull tab.
Use pull tab to slide cable straight into receptacle.
Lock down lever after inserting cable.
Remove ESD-safe Kapton tape, if used.
Close lever when handling or shipping a logic board module, whether a known-good or a known-bad board.

Example:

keyboard power-on button

fans
trackpad
microphone

Caution: The locking levers on the logic board are fragile. To protect the levers during handling or shipment of the logic
board, close the levers after the cables are disconnected. Once the logic board is installed in the top case and the cables are
connected, be sure to lock down the levers again.

Locking Lever Video

Thin, Multi-Pin Horizontal Insert: No Locking Bar

Use black stick on alternating sides to evenly disconnect cable.

Slide connector into receptacle on same horizontal plane as board.

Example:

camera cable

Thin, Multi-Pin Horizontal Insert Video

Thin, Multi-Pin Horizontal Insert: Locking Bar

Flip up lock bar before disconnecting cable, but do not use bar as a handle when disconnecting.
Use two black sticks with even force at sides of connector to disconnect it. A gentle rocking motion may be required.
Align connector with receptacle, and use black sticks to slide the connector into place.
With cable installed, press lock bar closed until it rests flat on logic board.

Example:

embedded DisplayPort (eDP) cable

Thin, Multi-Pin Horizontal Insert Video

Horizontal Install

Pull connector, not cable, to remove.

Keep cable parallel to logic board when sliding connector out of or into receptacle.

Example:

I/O cable to logic board

MagSafe

Horizontal Install Video

Tools

Tools for MacBook Pro (Retina, 13-inch, Late 2012, Early 2013, Late 2013, Mid 2014, Early 2015)

Caution: To prevent scratches or other cosmetic damage to the computer housing, use a soft cloth as a protective layer
when removing and installing the external screws.

The following tools are required to service the computer:

Clean, soft, lint-free cloth

ESD-safe workstation, including an ESD mat and wrist or heel strap
ESD bags (for storing ESD-sensitive parts while removed from unit)
ESD-safe nonconductive interposer tweezers (included in kit 076-1411, and shown below) for handling interposer in
Late 2012 and Early 2013 models
ESD-safe tweezers for wireless card cables
Pentalobe screwdriver (923-0731)
Torx T5 screwdriver, magnetized
Torx T6 screwdriver, magnetized
Torx T8 screwdriver, magnetized
Phillips #00 screwdriver, magnetized, for trackpad screws and one (1) heat sink screw
Black stick (nylon probe, 922-5065) or other nonconductive nylon or plastic flat-blade tool
Thermal grease syringe (included with heat sink and logic board)
Alcohol wipe (included with heat sink and logic board)
Magnifying glass, for reading serial number etched on bottom case
Trackpad calibration weights (923-00462) for the Trackpad Calibration Check, which is performed after every repair on
the MacBook Pro (Retina, 13-inch, Early 2015)
Protective battery cover (kit 076-1411 or cover only: 923-0230 for Late 2012 and Early 2013 models and 923-0705 for
Late 2013, Mid 2014, and Early 2015 models)

Nonconductive Interposer Tweezers

Electrostatic Discharge (ESD) Precautions

Proper ESD precautions must always be used when servicing this product. Make sure you are working on a properly
grounded ESD-safe mat and are wearing a properly connected ESD-safe wrist strap.

For more information about ESD, refer to:

OP100: Electrostatic Discharge Precautions and Myths

ATLAS: ESD Precautions
First Steps Overview

First Steps Overview

The following chart shows the parts that must be removed before a take-apart procedure can be performed on a MacBook
Pro (Retina, 13-inch, Late 2013, Mid 2014, or Early 2015). Procedures are listed in the left column; parts that must first be
removed are indicated with one or more black squares in the row for each procedure.

Notes

* Attach protective battery cover and disconnect battery connector.

** Left and right speakers are paired; if you are replacing one speaker with a new speaker, you must replace both speakers.

*** If you are replacing an I/O board with a new I/O board, transfer the wireless card to the new I/O board.

**** If you are replacing a logic board with a new logic board, transfer the flash storage to the new logic board.

***** Top case with battery includes: battery, keyboard, microphone, and trackpad. Note: On theMacBook Pro (Retina, 13-
inch, Early 2015) the trackpad flex cable is included with the top case with battery.
Take Apart Procedure Notes

Reassembly Steps

When no replacement steps are listed, replace parts in exact reverse order of Removal procedure.

Note About Images in This Guide

In some cases a pre-production model may have been used to document the procedures in this guide. Although there may
be small differences in appearance between the image pictured and the computer you are servicing, the procedures are the
same unless noted.

Screw Sizes

All screw sizes shown are approximate and represent the total length of the screw.
Bottom Case
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

Before you begin:

Shut down the computer.

Unplug all cables.
Put on an ESD wrist strap.
Place the computer on a clean, flat surface.

Important:

Always wear an ESD wrist strap and take precautions to avoid ESD.
Always attach the battery cover and disconnect the battery immediately after removing the bottom case.

Tools

ESD wrist strap

Clean, soft, lint-free cloth
Pentalobe screwdriver
Magnifying glass, optional
Black stick, optional
Battery cover
Steps For Removal
Caution: To prevent scratches, use a protective cloth when working with metal tools.

Important: Screws must be removed and installed at an angle.

1. Remove ten Pentalobe screws in the order shown.

Eight (3.14 mm) 923-0645 shoulder screws

Two (2.32 mm) 923-0132 shorter screws (#1 and #3 in image)

2. From the top edge, pull the bottom case toward you.
Note: If you are replacing the bottom case only and doing no other repairs, proceed to the Reassembly steps.

3. IMPORTANT: If you are performing other repairs, do the following in order:

Attach the battery service cover. Tilt the battery cover when installing to make sure the front edge of the battery cover
slips underneath the front lip of the top case. Securely attach the two clips on the battery cover to the top case midwall.
Disconnect the battery.
Steps For Reassembly

1. When installing a new bottom case, retain the original bottom case until the repair is complete. Before installing the
replacement bottom case, write the system serial number on the inside of the new bottom case. You might need a
magnifying glass to read it. Refer to article TP1057: Serial Number Locations.

Serial number written inside new bottom case

2. Check that the bottom case interior is clean and free of debris.

3. Install the bottom case so that the two clips snap onto the top case.

MacBook Pro (Retina, 13-inch, Late 2013 and Mid 2014) bottom case
MacBook Pro (Retina, 13-inch, Early 2015) bottom case

4. Confirm all screw holes align before installing screws.

Note: To prevent offsetting the bottom case, press with two fingers around each screw hole while installing screws.

5. Install screws at an angle and in the order shown.

Eight (3.14 mm) 923-0131 shoulder screws

 Two (2.32 mm) 923-0132 shorter screws (#1 and #3 in image)

Reassembly Note: If screw sequence is not followed, bottom case may wobble when placed on level surface.

6. MacBook Pro (Retina, 13-inch, Early 2015) only: Verify the trackpad performance after every repair. For instructions,
refer to article TP1314: Trackpad Calibration Check.
Battery Cover and Disconnecting the Battery
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

Remove:

Bottom Case

IMPORTANT:

Always wear ESD wrist strap and take precautions to avoid ESD.
Always attach battery cover and disconnect the battery immediately after removing bottom case.

Tools

ESD wrist strap

Black stick
Battery cover (923-0705)

Steps For Removal

1. Tilt the battery cover to make sure the front edge of the battery cover slips underneath the front lip of the top case.
2. Securely attach the battery cover with two (2) clips that snap onto the midwall of the top case.
3. Use a black stick to disconnect the battery.

IMPORTANT: Make sure battery connector is completely disconnected and no longer in contact with the logic board.
Steps For Reassembly
1. Reassemble in reverse order of removal steps.

2. MacBook Pro (Retina, 13-inch, Early 2015) only: Verify the trackpad performance after every repair. For instructions,
refer to article TP1314: Trackpad Calibration Check.
Input/Output (I/O) Flex Cable
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

Remove:

Bottom Case

IMPORTANT:

Always wear ESD wrist strap and take precautions to avoid ESD.
Always attach battery cover and disconnect the battery immediately after removing bottom case.

Tools
ESD wrist strap
Torx T5 screwdriver, magnetized
Black stick
Steps For Removal
1. Use Torx T5 screwdriver to remove four screws (923-0649) on the metal brackets.

MacBook Pro (Retina, 13-inch, Late 2013 and Mid 2014) I/O flex cable brackets

MacBook Pro (Retina, 13-inch, Early 2015) I/O flex cable brackets

2. Remove the metal bracket (1), then use the black stick to pry the I/O flex cable (2) off the logic board connector. Repeat
for the other end of the I/O flex cable.

Steps For Reassembly

1. Reassemble in reverse order of removal steps.

IMPORTANT:

Check for bent pins to the connectors on the boards and to the connectors on the I/O flex cable before attaching the
cable.
Do NOT attempt to attach the I/O flex cable if there is any damage to the board or the cable connectors.
The I/O flex cable can only connect one way. The connectors on the cable are not reversible.
Align the grooves of the connector to the pins in the corresponding receptacle.
Keep the connector level while attaching.
Press firmly on each end of the cable to make sure the connector is securely attached to the boards.

2. MacBook Pro (Retina, 13-inch, Early 2015) only: Verify the trackpad performance after every repair. For instructions,
refer to article TP1314: Trackpad Calibration Check.
Right and Left Speakers
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

Remove:

Bottom Case
Input/Output (I/O) Flex Cable

IMPORTANT:

Always wear an ESD wrist strap and take precautions to avoid ESD.
Always attach a battery cover and disconnect the battery immediately after removing the bottom case.

Note: The left speaker is located on the right side of the image. The right speaker is located on the left side of the image.

Tools
ESD wrist strap
Torx T5 screwdriver (magnetized)
Black stick
Steps For Removal
IMPORTANT: The right and left speakers are paired and only offered as a kit. If you need to replace one speaker, you must
replace both. Do not save a used, good speaker for another repair; the speakers are fine-tuned to each other by the
manufacturer and will not operate properly if mismatched. If installing replacement speakers from the speaker kit, reuse the
original two screws at location 1 and 2. Install the replacement screw that comes with the speaker kit in location 3 only.

1. Disconnect the left speaker cable and remove three T5 screws:

Screw 1: One medium screw (6.32 mm) 923-0647 at the middle corner

Screw 2: One short screw (4.85 mm) 923-0651 at the bottom front

Screw 3:
MacBook Pro (Retina, 13-inch, Late 2013 and Mid 2014): Uses either screw shown below. The speaker kit, part
number 923-0557, ships with either the 923-0644 screw or with the shoulder screw (no service part number, available
only with the speaker kit).
MacBook Pro (Retina, 13-inch, Early 2015): Uses the shoulder screw, which is available only in the speaker kit, part
number 923-00509.

One long screw (6.75 mm) 923-0644, used on the MacBook Pro (Retina, 13-inch, Late 2013 and Mid 2014)

One shoulder screw (5.61 mm), not available separately

2. For the right speaker, remove the I/O flex cable and disconnect the right speaker cable. Remove three T5 screws. The
right speaker screws are identical in size and their locations are numbered the same as the screws for the left speaker.
3. With the battery cover clips still engaged, tilt up the end of the battery cover to remove the speakers one at a time.
Steps For Reassembly

1. If installing the original speakers, reassemble in reverse order of removal steps. If installing replacement speakers from
the speaker kit, reuse the original two screws at the bottom of the speakers. Use the replacement screw that came with the
speaker kit in location 3 only.

2. MacBook Pro (Retina, 13-inch, Early 2015) only: Verify the trackpad performance after every repair. For instructions,
refer to article TP1314: Trackpad Calibration Check.
Wireless Card
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

Remove:

Bottom Case

IMPORTANT:

Always wear ESD wrist strap and take precautions to avoid ESD.
Always attach battery cover and disconnect the battery immediately after removing bottom case.

Tools
ESD wrist strap
Torx T5 screwdriver, magnetized
Black stick
ESD-safe tweezers
Steps For Removal
1. Make note of the antenna cable routing and insulation:

Short insulation: Cable connects closest to HDMI port

Long insulation: Cable connects to middle connector
No insulation: Cable connects closest to fan

Important: Do not swap cable positions, and make sure cables do not overlap screws.

2. Using tweezers, carefully grip first antenna cable on metal extension behind connector head. Gently pop cable straight up
off card. Repeat for other two antenna cables.

3. Remove one (2.68 mm) 923-0314 Torx T5 screw.

5. Lift up end of card a short distance and then gently rock and pull card to disconnect it from logic board connector.

Note: If thermal pad adheres to logic board, carefully peel pad from board. Check board and remove any residue.

If reinstalling this card, check thermal pad and reattach to underside of card, as shown. Or, if pad is damaged, attach new
thermal pad. If installing new card, note that replacement cards come with thermal pad adhered.
Steps For Reassembly

Note: If you are reinstalling the existing card, check that thermal pad is properly attached to underside of card.

1. Insert card into logic board connector.

2. Replace one (2.68 mm) 923-0314 screw.

3. Using tweezers, position antenna cable head over connector until you feel it seat with the connector. Then carefully press
straight down with a finger until head snaps into place. Repeat for other two antenna cables.

Short insulation: Cable connects closest to HDMI port

Long insulation: Cable connects to middle connector
No insulation: Cable connects closest to fan

Important: Do not swap cable positions, and make sure cables do not overlap screws.

Caution: Using too much force to reseat antenna cables can distort connector or connector rim.

4. MacBook Pro (Retina, 13-inch, Early 2015) only: Verify the trackpad performance after every repair. For instructions,
refer to article TP1314: Trackpad Calibration Check.
Flash Storage
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

For video instruction, refer to article SV218: Flash Storage Replacement Video.

Remove:

Bottom Case

IMPORTANT:

Always wear ESD wrist strap and take precautions to avoid ESD.
Always attach battery cover and disconnect the battery immediately after removing bottom case.

Caution: Make sure data is backed up before removing flash storage.

Tools
ESD wrist strap
Torx T5 screwdriver, magnetized
Steps For Removal
1. Remove one Torx T5 screw:

923-0161 (2.88mm)

2. Tilt card up (1) and gently pull flash storage out (2) of connector to disconnect.
3. Record the serial number. Copy the original serial number when reporting a flash storage return to Apple.

MacBook Pro (Retina, 13-inch, Late 2013 and Mid 2014) flash storage

MacBook Pro (Retina, 13-inch, Early 2015) flash storage

Steps For Reassembly

Replacement Note: Before installing a new flash storage card into the computer, peel off and discard the import compliance
label, if present. This label is required to import the service part into certain countries, but is no longer relevant once the part
is installed into a computer.

1. Reassemble in reverse order of removal steps:

Insert flash storage securely into slot and confirm it is seated properly.
Install one Torx T5 screw:

923-0161 (2.88mm)

2. MacBook Pro (Retina, 13-inch, Early 2015) only: Verify the trackpad performance after every repair. For instructions,
refer to article TP1314: Trackpad Calibration Check.
Reinstalling Software That Came with the Computer

Reinstalling Software That Came with the Computer

This procedure requires an Internet connection.

Note: In some situations, a user may have set a firmware password via a feature such as Find My Mac or FileVault. The
user must know the firmware password in order to reinstall OS X or macOS. If the user cannot remember the password, then
refer to the technician instructions in article HT203409: If you lost or forgot your firmware password.

Important: Apple recommends that users back up their data before any software restore procedure. Back up essential files
before installing OS X or macOS. Apple is not responsible for any loss of data.

1. Choose Apple menu > Restart, then hold down the Command (⌘ ) and R keys while the computer restarts.
Note: To force OS X Lion or later, or macOS Sierra, into Internet Recovery, press and hold the Command-Option-R
key combination while starting up the computer.
2. If the computer is not connected to the Internet, choose a network from the Wi-Fi menu (in the top-right corner of the
screen).
3. Select "Reinstall OS X" (or macOS), then click Continue.
4. Follow the onscreen instructions. In the pane where you select a disk, select your current OS X or macOS disk (in most
cases, it is the only one available).
5. To start the installation, click Install.

Check for and apply the latest software and firmware updates.

For more information, refer to article HT201314: About macOS Recovery.

MagSafe 2 Board
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

Remove:

Bottom case

Important:

Always wear an ESD wrist strap and take precautions to avoid ESD.
Always attach the battery cover and disconnect the battery immediately after removing the bottom case.

Tools

ESD wrist strap

Torx T5 screwdriver (magnetized)
Black stick
Steps For Removal
1. Use a black stick to remove the black gasket (1). Note: MacBook Pro (Retina, 13-inch, Early 2015) does not have a corner
gasket.

2. Use a black stick to lift the metal lock bar (2) on the embedded DisplayPort (eDP) cable. Disconnect the eDP cable by
gently pulling the cable out of the connector.

3. To support the cable during removal, slide the black stick (1) under the cable and place your thumb on top of the cable (2),
near the connector. With the cable between the black stick and your thumb, squeeze the black stick and cable together as
you gently pull the cable (3) to the right, out of the connector.
4. Use the Torx T5 screwdriver to remove two T5 screws (923-0235).

5. Remove the MagSafe 2 board by tilting up slightly and lifting out.

Steps For Reassembly

1. If installing a replacement MagSafe 2 board, discard the bar code label (if present), then peel the adhesive backing off the
cable and install the MagSafe 2 board into the top case. Important: Make sure the MagSafe 2 board is seated securely
against the top case port hole when installing.
2. Connect the embedded DisplayPort (eDP) cable.

3. Replace the black corner gasket. Note: MacBook Pro (Retina, 13-inch, Early 2015) does not have a corner gasket.

4. Replace the bottom case.

5. MacBook Pro (Retina, 13-inch, Early 2015) only: Verify trackpad performance after every repair. For instructions, refer
to article TP1314: Trackpad Calibration Check.
Heat Sink
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

Remove:

Bottom Case

IMPORTANT:

Always wear ESD wrist strap and take precautions to avoid ESD.
Always attach battery cover and disconnect the battery immediately after removing bottom case.

Tools
ESD wrist strap
Torx T5 screwdriver, magnetized
Phillips #0 screwdriver, magnetized
Isopropyl alcohol (IPA) wipes
Thermal grease syringe (922-7144)
Black stick
Steps For Removal

1. Remove and set aside four rubber screw bumpers.

2. Remove in the following order:

Screw 1: Phillips #0

923-0238 (Late 2012, Early 2013, Late 2013, Mid 2014)

923-00605 (Early 2015)
Note: Some Early 2015 models may have a T5 screw #1, which was later phased out.

Screws 2 - 5: Four T5 screws (2.57 mm) 923-0140.

3. Grasp heat sink and fan gasket with hands and carefully pull up and away. Use black stick to help detach heat sink and
fan duct if needed.

4. Use IPA wipes to clean thermal pads and chips of any residual thermal grease.

Steps For Reassembly

1. Use a pen to mark the syringe in thirds.

Caution: Syringe (922-7144) contains enough thermal grease for three chips. Because thermal grease is only needed for
one chip, use only one-third of syringe contents.
2. Inject one-third of the syringe on the larger chip only. Apply a thin straight line along the center length of the larger chip
from right to left.

IMPORTANT: Apply thermal grease only to the larger chip.

3. Install heat sink and fan duct on logic board.

4. Replace five screws in order indicated. Install screws halfway first; then tighten in same order.

Screw 1: Phillips #0

923-0238 (Late 2012, Early 2013, Late 2013, Mid 2014)

923-00605 (Early 2015)
Note: Some Early 2015 models may have a T5 screw #1, which was later phased out. If replacing this screw, use
the Philips #0 part number listed here.
 Screw 2 - 5: Four T5 screws (2.57 mm) 923-0140.

5. Important: Adhere four rubber bumpers so they are centered on the four heat sink screws . They help protect the
microprocessor from sudden impact to the computer case.

If needed, you can order a replacement kit of five rubber bumpers (923-0295).
6. MacBook Pro (Retina, 13-inch, Early 2015) only: Verify the trackpad performance after every repair. For instructions,
refer to article TP1314: Trackpad Calibration Check.
Fan
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

Remove:

Bottom Case
I/O Flex Cable
Heat Sink

IMPORTANT:

Always wear ESD wrist strap and take precautions to avoid ESD.
Always attach battery cover and disconnect the battery immediately after removing bottom case.

Tools

ESD wrist strap

Torx T5 screwdriver, magnetized
Black stick

Steps For Removal

1. Disconnect camera cable by holding both sides of the cable end and gently sliding it straight back. Use black stick on
alternating sides of the cable end to loosen connection if needed.

2. Remove three T5 screws:

Screw 1 - (923-00109) This screw is slightly longer than screws 2 and 3.

Screws 2 and 3 - (923-0646).

3. Use a black stick to flip up locking lever (1) of fan cable and carefully separate cable (2) from logic board and disconnect
cable.

IMPORTANT: Flip down locking lever after disconnecting fan cable to avoid damaging locking lever.

4. Tilt up top end of fan to remove it.

Steps For Reassembly
1. Reassemble in reverse order of removal steps.

2. MacBook Pro (Retina, 13-inch, Early 2015) only: Verify the trackpad performance after every repair. For instructions,
refer to article TP1314: Trackpad Calibration Check.
Input/Output (I/O) Board
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

Remove:

Bottom Case
I/O Flex Cable
Wireless Card
Heat Sink
Fan

IMPORTANT:

Always wear ESD wrist strap and take precautions to avoid ESD.
Always attach battery cover and disconnect the battery immediately after removing bottom case.

Tools

ESD wrist strap

Torx T5 screwdriver, magnetized
Black stick
Torx T8 screwdriver, magnetized
Steps For Removal

1. Disconnect I/O cable by pressing in on connector tabs (1) and pulling cable straight out from receptacle (2) on logic board.

2. Remove two screws:

One T8 screw (1), 923-0237

One T5 screw (2), 923-0235

3. Slightly tilt I/O board up and gently pull out.

Caution: Be careful not to damage EMI ground tabs.

Steps For Reassembly

1. MacBook Pro (Retina, 13-inch, Early 2015): Check that two foam gaskets are present in the top case before installing
the I/O board. Previous models have only the larger foam gasket.
2. Tilt the port side of I/O board into top case.

3. Make sure metal EMI ground tabs on USB 3 and HDMI ports tuck under lip of top case. Press the tabs with a fingernail, if
necessary, to tuck them under lip.

4. Continue reassembly in reverse order of removal steps.

5. When returning an I/O board to Apple service, install the two protective port covers (transferred from the replacement
board) on the defective I/O board. They offer protection during shipment and handling.

6. MacBook Pro (Retina, 13-inch, Early 2015) only: Verify the trackpad performance after every repair. For instructions,
refer to article TP1314: Trackpad Calibration Check.
Trackpad Flex Cable
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

Remove:

Bottom Case
I/O Flex Cable

IMPORTANT:

Always wear ESD wrist strap and take precautions to avoid ESD.
Always attach battery cover and disconnect the battery immediately after removing bottom case.

Tools

ESD wrist strap

Black stick

Steps For Removal

1. Using a black stick, pry up the the trackpad flex cable connector (1) from the logic board, then gently peel the cable (2) off
the battery, toward the other end of the cable.

2. WIth a black stick, flip the locking lever (1) up and gently pull the Mylar tab (2) to disconnect the trackpad flex cable from
the connector. Note: Press the locking lever down (closed position) to avoid damaging to the connector.

Steps For Reassembly

1. Reassemble in reverse order of removal steps.

2. MacBook Pro (Retina, 13-inch, Early 2015) only: Verify the trackpad performance after every repair. For instructions,
refer to article TP1314: Trackpad Calibration Check.
Logic Board
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

For video instruction, refer to article SV217: Logic Board Replacement Video.

Remove:

Bottom case
I/O flex cable
Flash storage
MagSafe 2 board
Heat sink
Fan

Important:

Always wear an ESD wrist strap and take precautions to avoid ESD.
Always attach the battery cover and disconnect the battery immediately after removing the bottom case.

Note: The MacBook Pro (Retina, 13-inch, Mid 2014) logic board is shown in this procedure, but the procedure is the same
for the Late 2013 and Early 2015 models.

Tools

ESD wrist strap

Torx T5 screwdriver (magnetized)
ESD-safe plastic or nylon tweezers
Black stick
Kapton tape (optional)
Steps For Removal

1. Disconnect the I/O cable.

2. Disconnect the left speaker cable. The connector is a vertical insert or JST-type connector. Note: The underside of the
cable (near the JST connector) adheres to the logic board with adhesive. Use the flat end of a black stick to pry the cable
and connector from the logic board.
3. Disconnect five connectors in the order shown.

Connectors 1, 2, and 3 are locking lever-type connectors. Note: Connector #3 on MacBook Pro (Retina, 13-inch, Early
2015) is a press fit-type connector, like connector #5.
Connector 4 is a vertical insert or JST-type connector.
Connector 5 is a solid platform flex or press fit-type connector.

MacBook Pro (Retina, 13-inch, Late 2013 and Mid 2014) logic board
4. Remove five identical T5 screws (923-0235).

5. Starting at the end of the logic board closest to the I/O board, tilt up the logic board at a 15-degree angle to carefully clear
it from the connectors. The angle of tilt is important to prevent connector damage. You may need to loosen the top edge
of the battery cover.

6. Rock the board slowly to free it from the ports. Follow safe handling:

Hold the board by the edges.

Keep the board tilted at a 15-degree angle.
Do not touch the gold pads on the logic board.
Do not touch circuitry.
7. Remove the logic board from the top case and attach port covers (076-1426) to minimize board damage during shipping
and handling. A returned logic board without port covers is easily damaged and will not be accepted for return.

Optional: Use strips of Kapton tape to set cables out of the way after removing the logic board from the top case. Count the
number of tape strips that you use. Taping the cables can help prevent the cables from becoming trapped underneath the
logic board during reassembly.

Steps For Reassembly

Important:

Before installing a new logic board, remove the port covers.

A port cover kit is available if additional port covers are needed (076-1426).
When installing the new logic board, ensure that cables are not trapped underneath the logic board.

1. Tilt the logic board into the top case at a 15-degree angle, using caution at the ports to prevent damage to the EMI
ground tabs. Note: The angle of tilt is important to prevent connector damage.
Note the metal EMI ground tabs on the USB 3 and Thunderbolt ports. The C-shaped tabs must tuck under the lip of the top
case. Press the tabs with a fingernail, if necessary, to tuck them under the lip.
2. Check that no cables are pinched underneath the board.

3. Install the five logic board screws halfway first, while pushing the board against the top case ports to ensure a secure fit.
Adjust the board seating if necessary, then tighten screws.

Five T5 screws (923-0235)

Important: If Kapton tape was used to set the cables out of the way, retrieve the tape strips after connecting the cables.
Verify that the number of tape strips removed equals the number of tape strips used. Ensure that all the Kapton tape strips
are removed from the computer.

4. Connect all five connectors in reverse order from that shown, starting with 5 and ending with 1. Note: Connector #3 on
MacBook Pro (Retina, 13-inch, Early 2015) is a press fit-type connector, like connector #5.

Important: Locking lever connectors (1, 2, and 3 on MacBook Pro (Retina, 13-inch, Late 2013 and Mid 2014) take precision
and patience to connect. Tip: To connect the locking levers to the logic board, attach a piece of Kapton tape at the end of the
connector to give yourself a little more leverage when trying to insert the cable into the connector. Make sure to use Kapton
tape due to ESD concerns.

5. Reconnect the left speaker cable.

6. Reconnect the I/O cable.

For MacBook Pro (Retina, 13-inch, Early 2015) only: Verify the trackpad performance after every repair. For instructions,
refer to article TP1314: Trackpad Calibration Check.

For all models: If you have installed a replacement logic board, use Blank Board Serializer (BBS) to set the computer’s
serial number after the computer has been reassembled. BBS can be run from AST 1 or AST 2, or as a stand-alone, USB-
based version found in article SD63: Blank Board Serializer.

For more information about AST and supported Mac models, see article OP476: Latest Apple Service Toolkit download
links and documentation.
Important: When using BBS in AST 1 or AST 2, ensure that the unit under test (UUT) and the AST server are
connected to the same network, and that the AST server has the latest software version installed.

Returning Original Board to Apple

Caution:

Avoid damage to the board by not touching the ports and always holding the board by the edges.
While the board is out of the top case, do not install screws. Doing so could cause cracks.

1. Install port covers over the Thunderbolt and USB 3 ports. Make sure the C-shaped EMI ground tabs tuck inside the port
covers.
Caution: Port covers (076-1426) offer protection during shipment and handling. A returned logic board without port
covers is easily damaged and will not be accepted for return.
2. If a foam pad prevents full installation of the port cover, use Kapton tape to secure the cover.
Display Assembly and End Caps
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

Remove:

Bottom Case

IMPORTANT:

Always wear ESD wrist strap and take precautions to avoid ESD.
Always attach battery cover and disconnect the battery immediately after removing bottom case.
Tools

ESD wrist strap

Clean, soft, lint-free cloth
Foam wedge service fixture
Torx T5 screwdriver, magnetized
Torx T8 screwdriver, magnetized
Black stick
ESD-safe flat-head tweezers

Steps For Removal

1. Use black stick to remove rubber gasket (1).

Note: The rubber gasket (1) is not present on the MacBook Pro (13-inch, Early 2015) model.

2. Use black stick to flip the locking bar (2) and disconnect embedded DisplayPort (eDP) cable from logic board.
3. Use tweezers to disconnect three antenna cables from wireless card.

Make note of the antenna cable routing and insulation:

Short insulation: Cable connects closest to HDMI port

Long insulation: Cable connects to middle connector
No insulation: Cable connects closest to fan

Important: Do not swap cable positions, and make sure cables do not overlap screws.

Using tweezers, carefully grip first cable on metal extension behind connector head (area indicated by circle). Gently pop
cable straight up off card. Repeat for other two antenna cables.
4. Disconnect camera cable. Use a black stick to lift up fan duct just enough to slide camera cable out from underneath the
fan duct.
5. Use black stick to remove two clutch screw covers.

Reassembly Note: Replace rubber clutch covers with new ones each time they are removed. The adhesive is for one-time
use.

6. Remove one (3.07 mm) Torx T5 (1) mounting screw on right display end cap, then lift the metal end cap (2) out of the top
case. Repeat for left end cap. Note: Right and left end caps and their screws are included in service kit 076-1410.
7. Open display to 90 degrees and place computer on foam wedge service fixture.

8. Remove three (5.20 mm) 923-0139 Torx T8 clutch screws from the eDP cable side of the display.
9. Remove three (5.20 mm) 923-0139 Torx T8 clutch screws from the wireless card side of the display. Move antenna
ground clip out of the way.
10. Separate display assembly from top case.

Steps For Reassembly

Note: Extra clutch screw covers are included with replacement display assembly and are also available as service parts:
923-0259 (right cover) and 923-0260 (left cover).

1. When installing six (5.20 mm) 923-0139 clutch screws, do the following:

Align antenna ground clip over the two screw holes on the clutch nearest the wireless card and loosely install middle
screw. Install the middle screw on the opposite side clutch.
Loosely install left clutch screw on both clutches.
Loosely install remaining clutch screws at both clutches.
2. Remove the computer from the foam wedge service fixture, close the display, align top case to display, and tighten all six
screws.

Note: If you are replacing the display with a new display, scan and record the 2D barcode under the eDP cable.

3. Continue reassembly in reverse order of removal steps.

IMPORTANT: Make sure wireless card cables are connected in the correct order:

Short insulation: Cable connects closest to HDMI port

Long insulation: Cable connects to middle connector
No insulation: Cable connects closest to fan

Do not swap cable positions, and make sure cables do not overlap screws.

Use tweezers when reconnecting wireless card cables. Position antenna cable head over connector until you feel it seat with
the connector. Then carefully press straight down with a finger until head snaps into place. Repeat for the remaining two
antenna cables.
Caution: Using too much force to reseat antenna cables can distort connector or connector rim.

4. Make sure the clutch screw covers and foam gaskets are in place in the top cover before replacing the bottom case.

Note: MacBook Pro (Retina, 13-inch, Early 2015) has two foam gaskets in the top left corner.
5. MacBook Pro (Retina, 13-inch, Early 2015) only: Verify the trackpad performance after every repair. For instructions,
refer to article TP1314: Trackpad Calibration Check.
Top Case Assembly with Battery
First Steps
Important: This procedure should only be performed by Apple-certified technicians. For more information, refer to article
HT202594: Exams for Service Technicians.

For video instruction, refer to article SV216: Top Case Replacement Video.

Remove:

Bottom case
I/O flex cable
Right and left speakers
MagSafe 2 board
Heat sink
Fan
I/O board
Logic board
Display assembly

Important:

Always wear an ESD wrist strap and take precautions to avoid ESD.
Always attach the battery cover and disconnect the battery immediately after removing the bottom case.

Tools

None required.

Steps For Removal

With the first steps completed, the top case (with battery, keyboard, microphone, and trackpad) is the only remaining
component.

The top case assembly service part includes the following parts:
 battery
keyboard
microphone
trackpad
trackpad flex cable (included only with Early 2015 model)
removable parts such as screws, flexures, and clutch screw covers

Caution: The battery is part of the top case module. Do not attempt to remove the battery from the top case.

Important: For information on packaging and returning the top case to Apple, refer to article TP1058: Battery Handling and
Storage.

Steps For Reassembly

1. MacBook Pro (Retina, 13-inch, Late 2013 and Mid 2014): Transfer the foam gaskets and clutch covers if the top case has
been replaced, and reassemble in reverse order of removal steps. If you are servicing a MacBook Pro (Retina, 13-inch, Early
2015), follow steps 2-10.

2. Note: For MacBook Pro (Retina, 13-inch, Early 2015), the factory preinstalls one end of the trackpad flex cable on
replacement top cases. You will need to connect the other end of the flex cable to the logic board connector during
reassembly.

3. Follow the reassembly steps in reverse order of the removal steps, but before installing the logic board, carefully remove
the tape that secures the trackpad flex cable to the top case. Discard the tape.
4. Once the logic board is installed, connect the trackpad flex cable to the logic board. Important: Ensure that you don't bend
the flex cable; multiple bends could degrade cable integrity.

5. Pull the two blue pull-tabs (on the underside of the flex cable) in a downward motion to remove the adhesive backing on
the underside of the cable.
6. Secure the cable to the battery. Starting at the top of the cable, apply light pressure with your finger, pressing in the middle
along the vertical dotted line. Don't press on the lower end of the cable below the horizontal dotted line.

7. Any excess flex cable length should be directed toward the trackpad board and not toward the logic board.
8. Continue with the reassembly in reverse order of removal steps, but before installing the bottom case, make sure to
transfer the foam gaskets and clutch covers to the replacement top case.

Check that two foam gaskets are present in the top case, on the top left side. Previous models have only the larger foam
gasket.
9. Important: After replacing the top case on MacBook Pro (Retina, 13-inch, Early 2015), you must:

Verify trackpad performance. For instructions, refer to article TP1314: Trackpad Calibration Check.
Use Trackpad Keyboard Mapper in AST 2. Trackpad Keyboard Mapper programs the keyboard language, layout, and
function key mapping data into the trackpad whenever the top case assembly has been replaced. For more information
about AST 2, refer to article TP1105: AST 2 Reference Guide.
Apple USB SuperDrive
First Steps
Important: The following procedure is intended only for removing a stuck disc from an Apple USB SuperDrive at the user's
request. Do not take apart an Apple USB SuperDrive for repair. The repair strategy for this product is Whole Unit
Replacement.

This procedure requires placing SuperDrive upside down on its top case. Always use a clean, debris-free static mat to avoid
scratches and other cosmetic damage to the housing.

Tools
ESD wrist strap and mat
Black stick (922-5065)
#000 Phillips screwdriver
T10 Torx screwdriver (later models)
Suction cup (922-8252)
Steps For Removal
Because this is a handheld procedure, perform these steps over a workbench or elevated repair surface to minimize height
from which a component might fall.

1. Hold SuperDrive securely in one hand by edges of silver top case, with black bottom case facing up and USB cable
leading away from you.

2. With other hand, place suction cup on center of bottom case. Press down firmly to flatten and secure suction cup.
3. Once suction cup is fully adhered, lift straight up. Pull bottom case directly out of top case in one smooth motion. Secure fit
might give a lot of resistance.

Important: Adhesion of suction cup is short-lived. To avoid damage from dropping, immediately set bottom case on a clean
surface. Be mindful of tabs.

4. Set drive top-down on a soft, clean surface, with inside facing up and USB cable leading away from you. Remove three
#000 Phillips screws (shown below).
5. Note tab on lower left of drive fits into recessed slit on inside edge of top case (see below left). On opposite side of drive,
note gap in center of right edge of drive (see below right).
6. Insert flat edge of black stick into gap on right edge of drive. Carefully pivot edge upward slightly, just enough to slide drive
a few millimeters right. Ease left tab out of top case.

7. Note internal cable leading to external USB cable. In earlier model you will see a controller board connected to cable (see
inset below).

Caution: Since cable remains connected during this procedure, be careful not to pull or stress cable connections. To avoid
damaging cable, always keep drive within an inch or so of outer case.

8. Grip drive by edges. Avoid touching components. Lift drive up and out of top case a few millimeters — enough to pivot
and flip drive over.

9. As if opening a book, flip drive up and over. Gently lay it down, keeping edges as close together as possible to avoid
straining cable connections.

10. Immobilize drive while removing screws or components, holding drive by bracket or edges only.
11. Remove four #000 Phillips screws from top of drive (shown below).

12. Remove two T10 screws or two Phillips screws (depending on model) holding bracket to drive.

Earlier model:
Later models:

13. Lift top lid of drive, pivoting right edge up. Then shift lid left and downward to remove left edge.
14. Remove stuck disc. Reassemble SuperDrive in reverse order of previous steps 4-13. Proceed to step 15 to correctly
reinstall bottom case.

15. Orient bottom case to top case, as pictured below. Note three tabs per side on left and right sides of drive and two corner
tabs in back. There are no tabs in front (where disc slot is located).
16. Set bottom case evenly on top case with tabs just inside perimeter of top case edge. Align all tabs with top case.

Note: If case is oriented correctly, Apple logo will be right-side up when USB cable is pointed toward you.

17. With firm, even pressure, snap bottom case into top case to seat tabs. Verify all tabs are fully seated and SuperDrive sits
flat.

Steps For Reassembly

Reassemble in reverse order of removal steps.

Quick Test

Plug Apple USB SuperDrive into known-good computer to check functionality. Check drive for disc insertion, mounting, and
ejection of a variety of optical media.
Exploded View

Exploded View
Exploded View

Exploded View for MacBook Pro (Retina, 13-inch, Early 2015)

1. Bottom Case

923-0053

2, 3. Speaker, Left and Right

923-00509

4. Fan, Kit

076-00071

5. Flash Storage

661-02350, 128GB
661-02351, 256GB
661-02352, 512GB
661-02353, 1TB

6. Wireless Card

661-02363

7. Heat Sink, Kit

076-00072
8. I/O Board

661-02457

9. Logic Board

661-02354, 2.7 GHz, 8GB

661-02355, 2.7 GHz, 16GB
661-02356, 2.9 GHz, 8GB
661-02357, 2.9 GHz, 16GB
661-02358, 3.1 GHz, 8GB

10. I/O Flex Bracket Right

923-00516

11. I/O Flex Bracket Left

923-00515

12. I/O Flex Cable

923-0559

13. Top Case Gasket

923-00519

14. IPD Flex Cable

923-00518

15. MagSafe 2 Board

923-00517

16. Top Case Assembly with Battery (includes battery, keyboard, trackpad, and microphone)

661-02361, US
661-02362, US, Out-of-Warranty

Note: Regional top cases have the same part number, but they include a language code prefix. Example: F661-02361 is for
France.

17. Display Assembly

661-02360 (includes left and right clutch screw covers)

Not shown:

Battery Cover, pkg of 2, 923-0705

Display End Caps and Screws Kit, 076-00073
Port Covers Kit, 076-1426
Power Adapter, 661-00681, US

Note: Regional power adapters have the same part number, but they include a language code prefix. Example: CH661-
00681 is for China.

Weight Test Kit, 923-00462

Power Cord, 922-9173
Screw Chart

MacBook Pro (Retina, 13-inch, Late 2012, Early 2013, Late 2013, Mid 2014, Early 2015)

076-1410
923-0131
Torx T5 922-9651 Pentalobe
Torx T5

Display End Cap (2)

SSD Card or Flash Storage (1) Bottom Case (8), (Late 2012, Early
2013)
Note: Kit includes end caps and screws

923-0132 923-0139 923-0140

Pentalobe Torx T8 Torx T5

Bottom Case (2) Display Assembly (6) Heat Sink (4), center

923-0234
923-0232 923-0233 Torx T5
Torx T5 Torx T5

I/O Board (1), near cable (Late 2012,

Trackpad (6), battery tray (Late 2012 and Speaker (1), corner (Late 2012 and Early 2013);
Early 2013 only) Early 2013 only) Logic Board (2), lower edge (Late 2012,
Early 2013)

923-0237
Torx T8
923-0235 Shoulder screw
923-0236
Torx T5
Torx T5

I/O Board (1) (Late 2013, Mid 2014)

Heat Sink (1), near eDP cable (Late 2012,
Left/Right Fan (3) (Late 2012, Early
Early 2013);
2013);
Logic Board (5); MagSafe (2); I/O Board (1), Note: The I/O screw is accessible once
near cable the screw (923-0238)
on thermal module is removed.
923-0238 923-0239 923-0240
Phillips #0 Torx T6 Torx T6

Heat Sink (1), near I/O (Late 2012, Early Interposer (2), BMU (Late 2012, Interposer (1), BMU (Late 2012, Early
2013, Late 2013, Mid 2014) Early 2013) 2013)

923-0242
923-0241 923-0243
Torx T5
Torx T5 Torx T5

Speaker (1), top (Late 2012, Early

Speaker (1), front (Late 2012, Early 2013) Audio board (2) (Late 2012, Early 2013)
2013)

923-0287 923-0288 923-0290

Torx T6 Phillips #00 Phillips #00

Trackpad (1), set screw (Late 2012, Early Trackpad (4), lower flexure (Late Trackpad (4), upper flexure (Late 2012,
2013) 2012, Early 2013) Early 2013)

923-0291 923-0644
Torx T6 923-0314
Torx T5
Torx T5

BMU Interlock Screw (1) (Late 2012, Early Speaker (1), top (Late 2013, Mid 2014,
Wireless Card (1)
2013) Early 2015)
923-0645 923-0647 923-0650
Pentalobe Torx T5 Torx T5

Bottom Case (8), (Late 2013, Mid 2014, Speaker (1), corner (Late 2013, Mid Display End Cap (2)
Early 2015) 2014, Early 2015)
Note: Screw only; kit does not include
end cap.

923-00605
923-0651 923-00522
Torx T5 Phillips #0
Torx T5

Speaker (1), front (Late 2013, Mid 2014, Heat Sink (1), near I/O (Early 2015)
Early 2015) Heat Sink (4), center (Early 2015)

923-00525
923-00523 923-00109
Torx T5
Torx T5 Torx T5

Fan (1), (Late 2013, Mid 2014, Early

I/O Board (1), near display hinge 2015)
I/O flex cable (4) (Early 2015)
(Early 2015)

923-0646

Torx T5

Fan (2) (Late 2013, Mid 2014, Early 2015)

Screw Location Diagrams

Screw Location Diagrams for MacBook Pro (Retina, 13-inch, Late 2013, Mid 2014, and Early 2015)

Note: All screw sizes shown are approximate and represent the total length of the screw.

IMPORTANT:

Always wear ESD wrist strap and take precautions to avoid ESD.
Always attach battery cover and disconnect the battery immediately after removing bottom case.

Bottom Case

Two 923-0132 (2.32 mm) T5 screws (#1 and #3 in diagram)

Eight 923-0131 (3.14 mm) T5 screws

I/O Flex Cable

Four 923-0649 (1.6 mm) T5 screws

Left Speaker

One 923-0233 (6.32 mm) T5 screw (#1)

One 923-0241 (4.85 mm) T5 screw (#2)

One 923-0240 (6.75 mm) T5 screw (#3)

Right Speaker

One 923-0233 (6.32 mm) T5 screw (#1)

One 923-0241(4.85 mm) T5 screw (#2)

One 923-0240 (6.75 mm) T5 screw (#3)

Wireless Card

One 923-0314 (2.68 mm) T5 screw

Flash Storage

One 922-9651 (2.88 mm) T5 screw

MagSafe 2 Board

Two 923-0235 (3.43 mm) T5 screw

Heat Sink

Phillips #0 screw (#1)

One 923-0238, 2.25 mm, (Late 2012, Early 2013, Late 2013, Mid 2014)
One 923-00605, 2.7 mm, (Early 2015)

Four 923-0140 (2.57 mm) T5 screws (#2-5)

Fan

One 923-00109 (3.08 mm) T5 screw (#1)

Two 923-0646 (1.6 mm) T5 screws (#2-3)

I/O Board

One 923-0237 (4.95 mm) T5 screw (#1)

One 923-0235 (3.43 mm) T5 screw (#2)

Logic Board
 Five 923-0235 (3.43 mm) T5 screws at logic board (#1-5)

Display Assembly

Two 076-1410 (3.07 mm) T5 screw (1 at each end cap)

Six 923-0139 (5.20 mm) T8 screws (3 at each display clutch)

External Views

External Views of MacBook Pro (Retina, 13-inch, Late 2012, Early 2013, Late 2013, Mid 2014, Early 2015)

Front View

Port View
A = MagSafe 2 Power
B = Thunderbolt (Late 2012 and Early 2013) or Thunderbolt 2 (Late 2013, Mid 2014, and Early 2015)
C = USB 3
D = Headphone (audio out)
E = Dual microphones
F = SDXC card slot
G = HDMI
H = USB 3

Bottom Case View

Identify models by the EMC number on the bottom case:

MacBook Pro (Retina, 13-inch, Late 2012): EMC 2557

MacBook Pro (Retina, 13-inch, Early 2013): EMC 2672
MacBook Pro (Retina, 13-inch, Late 2013): EMC 2678, as shown
MacBook Pro (Retina, 13-inch, Mid 2014): EMC 2875
MacBook Pro (Retina, 13-inch, Early 2015): EMC 2835
Internal Views

MacBook Pro (Retina, 13-inch, Late 2013 and Mid 2014)

Before completing a repair, make sure the following parts are attached:

Rubber screw bumpers on heat sink platform (4)

Clutch screw covers (2)
Foam strip at SD port
Black rubber gasket near video cable

MacBook Pro (Retina, 13-inch, Early 2015)

Before completing a repair, make sure the following parts are attached:

Rubber screw bumpers on heat sink platform (4)

Clutch screw covers (2)
Foam gaskets in top left and top right corner.
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