Apple iPhone 12 Pro Max Technical Instructions

PDF

Document

iPhone 12 Pro Max

Repair Manual

iPhone 12 Pro Max

Basics

Introduction

Safety

Procedures

Contents

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iPhone 12 Pro Max

Introduction

This manual includes technical instructions for replacing genuine Apple parts in iPhone and is intended for individual technicians with the knowledge, experience, and tools required to repair electronic devices.

Important

• Read the entire manual first. If you’re not comfortable performing the repairs as instructed in this manual, don’t proceed.

• Always use the latest version of this document available at support.apple.com/manuals/ repair+manual .

Warning

• Failure to follow the repair instructions or to use genuine Apple parts or proper tools may cause fire or other safety issues and lead to personal injury or death.

• iPhone 7 and later are classified as Class 1 Laser products per IEC 60825-1 Ed. 3.

These devices comply with 21 CFR 1040.10 and 1040.11, except for conformance with

IEC 60825-1 Ed. 3., as described in Laser Notice No. 56, dated May 8, 2019. These devices contain one or more lasers. Use other than as described in the user guide, repair, or disassembly may cause damage, which could result in hazardous exposure to infrared laser emissions that are not visible.

Caution

Failure to follow the repair instructions or to use genuine Apple parts or proper tools may damage the iPhone, parts, or other property, or compromise the device’s functionality or water resistance.

Warranty information

Damage caused by repairs performed outside of Apple or the Apple Authorized Service network is not covered by Apple’s warranty or AppleCare plans. Such damage may cause future repairs to be subject to out-of-warranty costs or render the device ineligible for future repairs by Apple or Apple Authorized

Service Providers.

iPhone 12 Pro Max Introduction

Tools and parts

Hardware tools

Apple tools are designed to apply the appropriate heat, force, and torque during repairs, and to withstand high-volume professional use.

• The heated display removal fixture softens adhesive to allow separation of the display from the enclosure. The fixture is used with a heated display pocket designed for the device’s specific dimensions.

• The display press applies the appropriate amount of pressure to secure new adhesive during display installation. The display press is used with a repair tray and display adhesive press plate designed for the device’s specific dimensions.

• The battery press applies the appropriate amount of pressure to secure new adhesive during battery installation. The battery press is used with a repair tray designed for the device’s specific dimensions.

Ordering tools and parts

You can learn how to order genuine Apple parts and tools at support.apple.com/self-service-repair .

During the purchase process, enter the manual ID TAGYWX to indicate that you’ve read this manual in its entirety and agree that you have the knowledge and experience to perform your intended repair.

Software tools

A System Configuration step may be required at the end of your repair. System Configuration is a postrepair software tool that completes the repair for genuine Apple parts. Running System

Configuration has a number of purposes that vary based on the part replaced.

What System

Configuration does

Transfers factory calibration values

Why it’s important

Certain parts like displays, cameras, and ambient light sensors have calibration values that are customized to each individual part during manufacturing.

Transferring these values ensures maximum performance and quality after a repair.

Links Secure

Element and biometric authentication parts

Ensures repair integrity

Assigns wireless region

After repair of a logic board or a biometric authentication part (Touch ID or

Face ID), linking the biometric sensors to the Secure Enclave on the logic board is required to ensure device security.

After a hardware repair, software checks are performed to ensure repair integrity.

Repair integrity means that a genuine Apple part has been correctly installed.

To comply with regional communications regulations, a wireless region must be assigned to your logic board.

Updates firmware Keeping firmware up to date ensures that the device has all the latest security and performance features.

iPhone 12 Pro Max Introduction

System Configuration requires a strong Wi-Fi network capable of 1.0 Mbps download and upload speeds, with less than 400 ms latency and less than 2% packet loss. Estimated data usage to run

System Configuration is 6–22 MB.

The device must be running the latest version of iOS and not a beta version.

Learn how to initiate the System Configuration process at support.apple.com/self-service-repair .

Alerts

Failure to follow alerts could result in fire, injury, data loss, or damage to the device, parts, or other property.

Warning Instructions for reducing risk of personal injury

Caution

Important

Instructions for reducing risk of data loss or device hardware damage

Supplemental information for successfully completing procedures; neither a Warning nor a Caution

iPhone 12 Pro Max

Internal View

1. TrueDepth camera assembly

2. Cameras

3. Top battery adhesive tabs

4. Battery

5. Bottom battery adhesive tabs

6. Speaker

7. Lightning connector

8. Bottom microphones

9. Taptic Engine

10. Taptic Engine cowling

11. Display connector

12. Battery flex cable

13. Receiver/ambient light sensor/ proximity sensor connector

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iPhone 12 Pro Max

Orderable Parts

Name

Battery

Battery shim

Camera

Camera cowling

Display

Display adhesive

Lower cowling

Rubber gasket

Security screws

Numbers

661-18428

923-05109

661-18172

923-05027

661-18466

LL661-18466 (U.S.)

923-04895

923-05030

923-05103

—

SIM tray

Speaker

Taptic Engine

Orderable Parts

Screws

—

923-05028 (5)

—

923-05031 (4)

—

923-05064 (2) pacific blue 

923-05065 (2) silver

 923-05066 (2) gold 

923-05067 (2) graphite

— 923-05056 single, graphite

923-05057 dual, graphite

923-05058 single, silver

923-05059 single, gold

923-05060 single, pacific blue

923-05061 dual, silver

923-05062 dual, gold

923-05063 dual, pacific blue

923-05104

923-05036

923-05105 (3) top, lower left

923-05106 (1) lower right

923-05037 (2) (super screws)

923-05038 (1) bottom

iPhone 12 Pro Max

Name

Taptic Engine cowling

Upper cowling

Numbers

923-05107

923-05029

Screws

923-05105 (1)

923-05031 (4)

Orderable Parts

iPhone 12 Pro Max

Screws

Warning

• Never reinstall a screw after it has been removed. Install only new screws. iPhone screw grooves are covered in adhesive that can’t be reused.

• Use only the torque driver indicated to install new screws during reassembly. Both overtightened screws and loose screws can damage parts.

Note: You can use any torque driver to remove screws.

923-05028

Screws

923-05031

923-05105

923-05037

923-05038

923-05064

923-05065

923-05066

923-05067

Torque driver (black, 0.35 kgf cm)

Torque driver (gray, 0.55 kgf cm)

Torque driver (green, 0.45 kgf cm)

Crosshead screw

Super screw

Trilobe screw

Security screw

923-05105

923-05106

Single screw

Screw with super screw underneath

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iPhone 12 Pro Max

Tools

Tools with part numbers are available for purchase from the Self Service Repair Store. Tools without part numbers can be purchased from electronics supply retailers.

923-04879

6.7-inch back protective cover

923-04880

6.7-inch display protective cover

661-22310

6.7-inch heated display pocket

923-04909

6.7-inch repair tray

923-01092

Adhesive cutter

923-02657

Battery press

Cut-resistant gloves

923-04912

Display adhesive press plate

661-08916

Display press

iPhone 12 Pro Max

ESD mat ESD-safe cleaning solution ESD-safe tweezers

Tools

Heat-resistant gloves

Ethanol wipes 1

661-17619

Heated display removal fixture

IPA wipes

923-01290

Micro stix® bit

Nitrile or lint-free gloves

922-5065

Nylon probe (black stick) Safety glasses with side shields

iPhone 12 Pro Max

Sand 2 Sand container 3

923-02066

Super screw bit

Tools

923-0248

Torque driver (black,

0.35 kgf cm) kit 4

923-00738

Torque driver (gray,

0.55 kgf cm)

923-00105

Torque driver (green,

0.45 kgf cm)

1 Ethanol wipes must contain at least 90% ethanol and no additives except isopropyl alcoho l.

2 Clean, dry, untreated sand (8–10 cups)

3 Sand container (wide-mouthed, quick pour, nonbreakable plastic container with a flip-top lid)

4 The black torque driver kit includes a black torque driver (0.35 kgf cm), Torx® security bit (923-0247), and

JCIS bit (923-0246).

iPhone 12 Pro Max

Heated Display Removal Fixture

Tools | Heated Display Removal Fixture

Note: A rented heated display removal fixture may have different packaging than shown. If your fixture came with a USB cable, set the cable aside. This setup doesn’t require it.

1. Remove the fixture from the box. Then remove the packing Styrofoam.

Caution

Don’t lift the fixture by the knob.

2. Cut and remove the zip tie from the handle.

iPhone 12 Pro Max

3. Turn the top knob on the fixture counterclockwise to raise the suction cup.

Remove the packing

Styrofoam.

Tools | Heated Display Removal Fixture

4. Turn the emergency stop knob clockwise until it clicks and protrudes from the stop guard.

5. Plug the power cord into the fixture. The fixture won’t turn on until you flip the switch on the back.

iPhone 12 Pro Max

Battery Safety

Warning

• This device contains a built-in lithium-ion rechargeable battery with soft battery cells. Battery safety is the number one concern when repairing a device with a built-in lithium-ion battery.

• Only technicians with the knowledge, experience, and tools required to repair electronic devices should replace a battery.

• Improper battery replacement, improper handling of parts, failure to discharge the battery before repair, or failure to follow the provided instructions could cause battery overheating, swelling, venting, leaking, or a battery thermal event. These events could result in fire, injury, death, data loss, or damage to the device, parts, or other property.

• To avoid these potentially harmful events, follow the battery safety guidelines and work in a safety-focused workspace with the tools listed below. It’s important to be prepared for all possible outcomes.

How to set up a workspace for battery safety

Tools

• Clean, dry, untreated sand (8–10 cups)

• Sand container (wide-mouthed, quick pour, nonbreakable plastic container with a flip-top lid)

• Heat-resistant gloves

• Safety glasses with side shields

• ESD-safe cleaning solution

Workspaces used to repair Apple devices should meet the following criteria:

• Nonflammable and electrostatic discharge (ESD)-safe work bench

• At least 2 feet away from paper and other combustible materials

• Sand container within reach (2 feet) on both sides of the workspace, not above the workspace

• Adequate ventilation

iPhone 12 Pro Max Battery Safety

Warning

How to handle a battery thermal event

A battery thermal event is a rapid chemical chain reaction that occurs inside a battery cell.

The energy stored in the battery is released suddenly, which can cause outgassing and fire.

A battery thermal event can be triggered by physical damage to the battery, improper replacement or repair, or temperatures outside the battery’s operating range.

Act immediately if you notice any of the following signs of a battery thermal event:

• The lithium-ion battery or a device that contains one begins to smoke or emit sparks or soot.

• The battery pouch suddenly and quickly puffs out.

• The lithium-ion battery or a device that contains one begins to emit hissing or popping sounds.

Don’t use water or an ABC or carbon dioxide fire extinguisher on a battery thermal event or a device that is undergoing one. Water and ABC or carbon dioxide fire extinguishers won’t stop the reaction.

Do smother the battery or device immediately with plenty of clean, dry sand. Dump the sand all at once. Timing is critical — the faster you pour all the sand, the sooner the reaction will be contained.

Do contact local fire authorities if further assistance is needed.

Do leave the room for 30 minutes after the reaction is contained. Ventilate the area. Don’t return until the area is clear of smoke.

Do wait 30 minutes before touching the device. Wear the heat-resistant gloves and safety glasses with side shields to remove the device from the sand.

Do wipe the affected area with water first. Then wipe the area with an ESD-safe cleaning solution.

Do dispose of the damaged battery or device (including any debris removed from the sand) according to local environmental laws and guidelines.

iPhone 12 Pro Max

How to handle batteries

Battery Safety

Warning

Fully discharge the battery before you begin a repair. A discharged battery is less susceptible to a battery thermal event. If you can’t determine the battery level, don’t repair the device.

Perform the following steps to discharge the battery:

• Disconnect all external cables.

• Remove all cases and covers.

• Turn on the flashlight from the Lock Screen, in Control Center, or by asking Siri. Wait until the device has turned off and the flashlight is no longer illuminated.

Caution

The flashlight produces heat. Keep the iPhone in a well-ventilated area while the flashlight is illuminated.

Best practices

• To avoid noxious fumes or a battery thermal event, don’t puncture, strike, or crush a lithium-ion battery or a device that contains one.

• Keep your workspace clear of foreign objects and sharp materials.

• Be careful when using sharp tools near the battery.

• Don’t leave loose screws, extra screws, or small parts inside the device.

• Don’t use tools that conduct electricity.

• Don’t throw or drop the battery.

• Don’t expose the battery to excessive heat or sunlight, or temperatures outside the battery’s operating range.

• Handle and dispose of waste batteries in accordance with local laws and regulations.

iPhone 12 Pro Max

Broken Glass

Warning iPhone displays and some back covers are made of glass. The glass could break if the iPhone is dropped on a hard surface, receives a substantial impact, or is crushed, bent, or deformed.

Don’t attempt to remove chipped or cracked glass shards.

Tools

• Back protective cover

• Cut-resistant gloves

• Display protective cover

• Heated display pocket

• Safety glasses with side shields

• Vacuum cleaner

If the iPhone glass is broken, perform the following steps before you begin a repair:

1. Put on safety glasses with side shields and the cut-resistant gloves.

2. Use a vacuum cleaner to remove glass pieces from your workspace and the iPhone.

3. Attach a protective cover to the broken glass to prevent injury or scattering of glass. Each protective cover has a release liner underneath. Slowly pull the release liner out from under the protective cover while pressing the cover onto the enclosure.

4. Fold the release liner. Use the shiny side of the release liner to firmly press the protective cover onto the broken glass and smooth out any air bubbles.

5. Wait at least 12 minutes for the bond between the protective cover and the glass to strengthen.

6. If the back glass is broken, place the iPhone into the heated display pocket.

iPhone 12 Pro Max

If the iPhone has any of the following conditions, stop the repair:

• There’s no glass or insufficient glass for the protective cover to adhere to.

• The protective cover doesn’t adhere to the iPhone.

• The iPhone doesn’t fit in the heated display pocket.

You can find a service option at support.apple.com/repair .

Broken Glass

iPhone 12 Pro Max

First Steps

Always perform the following steps before starting a repair:

• Back up the iPhone .

•

Discharge the battery fully .

• Turn off the iPhone .

• Disconnect all cables.

• Remove all cases and covers.

• Clear and clean your workspace.

• Put on an ESD wrist strap and attach it to a properly grounded ESD mat.

Caution

ESD (electrostatic discharge, or the release of static electricity) can damage electronic components.

First Steps

Be aware of the following while performing a repair:

• The manual for this model may show images of other models, but the procedures are the same.

Ensure that you use the correct tools for the model you’re repairing.

• Take your time. Thoroughly read all instructions and alerts.

• Magnetizing the torque drivers will make it easier to work with small screws.

• The end of each flex cable must align with its connector. Press the end of each flex cable to its connector until it clicks to ensure that it’s secure.

Warning

Loose screws, extra screws, or small parts inside the device can damage the battery and cause safety issues. Set aside all parts and screws removed during the repair and account for them at the end of the repair.

iPhone 12 Pro Max

SIM Tray

Tools

• SIM-eject tool or paper clip

Removal

1. Find your model to locate the SIM tray .

2. Insert a paper clip or SIM-eject tool into the hole next to the SIM tray.

3. Push the paper clip or SIM-eject tool toward the enclosure to eject the SIM tray.

4. Remove the SIM tray.

Reassembly

1. Press the SIM tray back into the side of the enclosure.

SIM Tray

iPhone 12 Pro Max

Display

Before You Begin

Display | Before You Begin

Warning

• Read

Battery Safety and follow workspace and battery handling guidelines before you begin.

• Read

Broken Glass

before you begin.

Tools

• 6.7-inch heated display pocket

• 6.7-inch repair tray

• Adhesive cutter

• Display adhesive press plate

• Display press

• ESD-safe tweezers

• Ethanol wipes or isopropyl alcohol

(IPA) wipes

• Heated display removal fixture

• Heat-resistant gloves

• Micro stix bit

• Nylon probe (black stick)

• Torque driver (black, 0.35 kgf cm)

• Torque driver (gray, 0.55 kgf cm)

• Torx security bit

iPhone 12 Pro Max

Caution

• To avoid damaging the lenses, don’t touch the TrueDepth camera assembly or nearby parts.

• Don’t touch the back of the display.

Touching the back of the display may affect image quality.

Display | Before You Begin

Important

• This procedure requires

System Configuration

. After you’ve completed all removal and reassembly steps, learn how to initiate the System Configuration process at support.apple.com/self-service-repair .

• Read

Heated Display Removal Fixture

if you’re setting up the fixture for the first time.

iPhone 12 Pro Max

Removal

1. Use a torque driver and the

Torx security bit to remove the two security screws, one from each side of the

Lightning connector. Set aside the screws.

2. Flip the switch on the back of the heated display removal fixture to turn it on.

The internal fan will turn on. Wait for a checkmark to appear on the screen.

Note: If an error code appears on the screen, turn off the fixture and turn it back on.

Display | Removal

iPhone 12 Pro Max

3. Gently insert the iPhone into the heated display pocket with the display faceup and the Lightning connector facing the bottom of the pocket.

Important

Ensure that the clamp on the side of the pocket is flipped up.

4. Flip down the clamp on the side of the pocket to lock the iPhone into place.

Display | Removal

iPhone 12 Pro Max

5. Put on the heat-resistant gloves. Align the cutout on the bottom of the pocket with the rail on the fixture.

Slide the pocket with the iPhone onto the rail on the fixture.

Warning

Don’t insert the pocket into the fixture without wearing the heat-resistant gloves.

Display | Removal

iPhone 12 Pro Max

6. Slide the pocket into the fixture until you hear the pocket click into place.

Note: The screen on the fixture will turn red and the timer will count down from 2 minutes while the pocket heats to the correct temperature. When the timer ends, the fixture will start to beep and the screen will turn green.

Display | Removal

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iPhone 12 Pro Max

7. Turn the knob on the fixture clockwise to lower the suction cup as close to the iPhone as possible without touching the iPhone.

Caution

To avoid damaging the iPhone, don’t turn the knob before the timer beeps.

Note: The fixture will beep until the suction cup is lowered.

8. Grasp the handle and slide the suction cup straight out until the edge of the suction cup aligns with the bottom edge of the display.

Caution

Failure to align the edges of the suction cup and the display may damage the iPhone.

Display | Removal

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iPhone 12 Pro Max

9. Turn the knob on the fixture clockwise to lower the suction cup onto the display (1). Then flip down the handle on the suction cup to secure the suction cup to the display (2).

10. Slowly turn the knob on the fixture counterclockwise until the display begins to separate from the enclosure.

Important

If you don’t see a gap between the display and the enclosure immediately, wait 30 seconds. If you still don’t see a gap, turn the silver part of the knob counterclockwise until the display begins to separate from the enclosure.

Display | Removal

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iPhone 12 Pro Max

11. Insert the edge of the adhesive cutter between the display and the enclosure.

Run the cutter between the display and the enclosure to the right and left as shown until the display partially releases from the enclosure.

Display | Removal

Caution

To avoid damaging the flex cables, don’t tilt up the bottom of the display more than 5 degrees.

iPhone 12 Pro Max

12. Flip up the handle to release the suction cup (1). Gently slide the flat end of the black stick under the edge of the suction cup to release it from the display (2).

Caution

Don’t turn the knob.

Turning the knob may damage the flex cables.

13. Press the eject button on the side of the pocket to release the pocket from the fixture.

Display | Removal

iPhone 12 Pro Max

14. Hold both sides of the pocket and slide it straight out of the fixture.

Display | Removal

15. Flip up the clamp on the side of the pocket to release the iPhone (1). Hold the area outlined in blue and gently remove the iPhone from the pocket (2).

16. Place the iPhone into the repair tray with the display faceup and the Lightning connector facing the cutout. Remove the gloves.

iPhone 12 Pro Max

17. Slide the display slightly toward the bottom of the iPhone.

18. Insert the edge of the adhesive cutter into the top of the iPhone between the display and the enclosure.

Hold the adhesive cutter at a 45-degree angle. Start at the middle and cut along the top and sides of the iPhone until the display is free.

Caution

To avoid damaging the flex cables, don’t tilt up the bottom of the display more than 5 degrees.

19. Insert the repair tray suction cups into the slots in the repair tray.

Display | Removal

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iPhone 12 Pro Max

20. Tilt up the display toward the suction cups. Press the top and bottom edges of the display to secure it to the suction cups.

Caution

• To avoid damaging the enclosure or display, ensure that the internal display clips are released before you tilt up the display.

• Don’t damage the flex cables as you tilt up the display.

Display | Removal

Warning

If the battery is dented, punctured, or otherwise damaged, stop the repair. You can find a service option at support.apple.com/repair .

21. Use a torque driver and the Micro stix bit to remove the four trilobe screws from the lower cowling. Set aside the screws.

iPhone 12 Pro Max

22. Use ESD-safe tweezers to remove the lower cowling. Save the cowling for reassembly.

Display | Removal

23. Use a torque driver and the

Micro stix bit to remove the three trilobe screws from the upper cowling. Set aside the screws.

24. Hold the upper cowling in place and use a torque driver and the Micro stix bit to remove the last trilobe screw (1). Set aside the screw.

Note: The upper cowling has a tab that fits into a slot near the camera cowling (2).

25. Use ESD-safe tweezers to tilt up the outer edge of the upper cowling. Then slide the upper cowling slightly toward the camera cowling to release the tab. Save the cowling for reassembly.

iPhone 12 Pro Max

26. Use the black stick to lift the end of the battery flex cable off the connector (1).

Caution

You must disconnect the battery flex cable first to ensure that the iPhone remains turned off.

27. Use the black stick to lift the ends of the display flex cable (2) and receiver flex cable (3) off the connectors.

Display | Removal

28. Hold the display by the edges. Pull the tabs on the suction cups to release them from the display.

Then set the display facedown on a clean, flat surface.

29. Remove the suction cups from the repair tray.

iPhone 12 Pro Max

30. Use ESD-safe tweezers to pick up the adhesive. Then pull the adhesive to remove it from the enclosure.

Repeat this process until all the adhesive is removed from the perimeter of the enclosure.

Caution

Don’t touch the

TrueDepth camera assembly, grounding springs, or nearby parts.

Display | Removal

31. Use ethanol wipes or IPA wipes to clean any adhesive residue from the enclosure.

Caution

Don’t use ethanol wipes or IPA wipes on the display. Ethanol or isopropyl alcohol may damage the display and affect image quality.

iPhone 12 Pro Max

Reassembly

1. Inspect the internal display clips for damage before reassembly. Ensure that the internal display clips are at a

90-degree angle and aren’t bent or damaged.

Important

• If the internal display clips are damaged, you may need to replace the display.

• If you’re installing a replacement display, peel the protective liner from the top and underside of it.

Warning

Inspect the enclosure for loose or extra screws and small parts, which can damage the battery and cause safety issues.

2. Place the enclosure in the repair tray with the Lightning connector facing the cutout.

Display | Reassembly

iPhone 12 Pro Max

3. Inspect the TrueDepth camera. Ensure that the top edge of the TrueDepth camera is under the lip of the enclosure.

Correct position

Display | Reassembly

Incorrect position

Caution

If the TrueDepth camera is positioned incorrectly, use the black stick to move it away from the grounding clip. Then insert the top edge of the TrueDepth camera under the lip of the enclosure.

iPhone 12 Pro Max Display | Reassembly

4. Align the replacement display adhesive over the enclosure with the top holes over the TrueDepth camera assembly and the bottom tab on the right.

Caution

Ensure that you’ve removed all adhesive residue from the display and the enclosure before you apply the replacement display adhesive.

5. The replacement display adhesive has a top release liner, a middle release liner, and a bottom release liner.

Grasp the tab on the bottom release liner. Then slowly pull the bottom release liner (1) out from under the adhesive

(2) while pressing the adhesive onto the enclosure.

Important

Don’t remove the top release liner yet.

Bottom release liner

Adhesive

Note: The replacement display adhesive for your model may look different from the illustration, but the steps are the same.

iPhone 12 Pro Max

6. Place the display adhesive press plate on top of the enclosure with the icon in the top right corner as shown.

Display | Reassembly

iPhone 12 Pro Max

7. Position the repair tray with the iPhone in the display press. Pull down the lever until the display press locks.

Display | Reassembly

iPhone 12 Pro Max

8. Wait until the timer on the display press beeps. Pull down the lever (1) and pull out the release knob (2).

Then lift the lever (3).

Display | Reassembly

9. Remove the repair tray from the display press and remove the press plate.

iPhone 12 Pro Max

10. Remove the left section on the top release liner first (1).

Then remove the three sections running along the right (2), top (3), and bottom (4).

Important

Don’t remove the middle release liner yet.

Top release liner

11. Insert the suction cups into the repair tray.

Display | Reassembly

iPhone 12 Pro Max

12. Align the left edge of the display with the left edge of the enclosure as shown.

Gently press along the edges of the display to secure it to the suction cups.

13. Press the ends of the display flex cable (1) and receiver flex cable (2) to the connectors. Press evenly along the length of each connector.

14. Press the end of the battery flex cable to the connector (3). Press evenly along the length of the connector.

15. Use ESD-safe tweezers to position the lower cowling over the ends of the display and battery flex cables.

16. Use the black torque driver and Micro stix bit to install four new trilobe screws into the lower cowling.

Display | Reassembly

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iPhone 12 Pro Max

17. The upper cowling has a tab near the third screw hole that fits into a slot near the camera cowling (3). Use

ESD-safe tweezers to fit the tab into the slot. Then lower the cowling over the end of the receiver flex cable.

18. Use the black torque driver and Micro stix bit to install four new trilobe screws (1–4) into the upper cowling in the order shown.

19. Peel the first strip of the middle release liner (1) clockwise, starting at the top right of the enclosure.

Peel the second strip of the middle release liner (2) counterclockwise, starting at the top right of the enclosure.

Then peel the third strip (3) counterclockwise, starting at the top left of the enclosure.

Middle release liner

Display | Reassembly

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iPhone 12 Pro Max Display | Reassembly

20. Inspect the display adhesive to ensure that it’s in the correct position and not damaged or wrinkled. If the adhesive is damaged, remove it and apply replacement adhesive.

21. Repeat step 3 to ensure that the TrueDepth camera is in the correct position. Then continue to step 22.

Warning

Inspect the enclosure for loose or extra screws and small parts, which can damage the battery and cause safety issues.

22. Pull the tabs on the suction cups to release them from the display. Tilt down the display to rest on the enclosure.

iPhone 12 Pro Max

23. Remove the suction cups from the repair tray.

24. Press all four corners of the display simultaneously.

Then press along the edges of the display until you hear a click and the display is flush with the enclosure.

Display | Reassembly

Caution

Ensure that the flex cables aren’t trapped between the display and the enclosure. Feel the edges of the display for variations or gaps. If the display isn’t flush, repeat all removal steps and check the flex cables for damage. Then repeat reassembly steps 1 through 24.

Raised edges

Edges in correct position

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iPhone 12 Pro Max

25. Position the repair tray with the iPhone in the display press. Pull down the lever until the display press locks.

Display | Reassembly

iPhone 12 Pro Max

26. Wait until the timer on the display press beeps. Pull down the lever (1) and pull out the release knob (2).

Then lift the lever (3).

Display | Reassembly

27. Remove the repair tray from the display press.

iPhone 12 Pro Max

28. Use the gray torque driver and Torx security bit to install two new security screws, one on each side of the Lightning connector. As you install the screws, press lightly on the display near the Lightning connector.

Caution

If the screws aren’t flush, remove and set aside the screws. Repeat step 28 to install another new set of screws. If the new screws still aren’t flush, repeat all removal and reassembly steps.

Display | Reassembly

Important

• System Configuration is required if you’ve installed a replacement display, battery, or camera.

Disregard notifications about iPhone features on the Lock Screen until you complete System

Configuration.

• After you’ve completed all removal and reassembly steps, learn how to initiate the System

Configuration process at support.apple.com/self-service-repair .

iPhone 12 Pro Max

Camera

Before You Begin

Camera | Before You Begin

Warning

Read

Battery Safety and follow workspace and battery handling guidelines before you begin.

Remove the following part before you begin:

•

Display

Tools

• 6.7-inch repair tray

• ESD-safe tweezers

• Micro stix bit

• Nitrile or lint-free gloves

• Nylon probe (black stick)

• Torque driver (green, 0.45 kgf cm)

Caution

• To avoid damaging the lenses, don’t touch the TrueDepth camera assembly or nearby parts.

• Avoid the grounding springs on the camera cowling and enclosure.

Important

This procedure requires System Configuration . After you’ve completed all removal and reassembly

steps, learn how to initiate the System Configuration process at support.apple.com/ self-service-repair .

iPhone 12 Pro Max

Removal

1. Place the enclosure in the repair tray with the Lightning connector facing the cutout.

Camera | Removal

2. Use a torque driver and the Micro stix bit to remove the five trilobe screws from the camera cowling in the order shown. Hold the camera cowling in place as you remove the center screw (5). Set aside the screws.

Caution

Avoid touching the grounding springs.

3. Use ESD-safe tweezers to tilt up the camera cowling from the left side. Then slide the cowling tab out of the slot on the right of the enclosure. Save the cowling for reassembly.

iPhone 12 Pro Max

4. Use ESD-safe tweezers to lift the end of the top camera flex cable off the connector.

Note: One camera flex cable covers the other.

5. Use ESD-safe tweezers to lift the end of the bottom camera flex cable off the connector.

Camera | Removal

6. Gently hold the flex cables together and lift the cameras out of the enclosure.

iPhone 12 Pro Max Camera | Reassembly

Reassembly

1. Put on the gloves to prevent contamination of the camera lenses. Then hold the replacement cameras with the lenses facedown and remove the protective cover from the camera lenses.

2. Tilt the bottom edge of the cameras down and toward the battery as shown.

Ensure that the camera flex cables fit into the channel in the enclosure.

3. Position the cameras in the enclosure.

4. Press the end of the bottom camera flex cable to the connector.

iPhone 12 Pro Max

5. Press the end of the top camera flex cable to the connector.

6. Lightly press the cameras into the enclosure.

7. The camera cowling has a tab that fits into a slot under the lip on the right side of the enclosure. Inspect the tab and grounding springs on the cowling for damage before reassembly.

Camera | Reassembly

8. Hold the cowling with

ESD-safe tweezers and slide the cowling tab into the slot.

Then lower the cowling onto the cameras.

Caution

• Avoid touching the grounding springs as you reinstall the camera cowling.

• Ensure that the screw cutouts in the cowling align with the screw holes and that the tab is inside the slot in the enclosure. A misaligned camera cowling may affect display image quality.

iPhone 12 Pro Max

9. Hold the camera cowling in place with your finger. Use the green torque driver and

Micro stix bit to install five new trilobe screws into the camera cowling in the order shown.

Camera | Reassembly

Reinstall the following part to complete reassembly:

•

Display

Important

After you’ve completed all removal and reassembly steps, learn how to initiate the System

Configuration process at support.apple.com/self-service-repair .

iPhone 12 Pro Max Camera | Reassembly

During System Configuration, you will perform LiDAR Scanner calibration. Prepare for calibration by reviewing the following steps:

1. Use a well-lit area containing objects of different shapes and sizes.

2. Sit or stand 1 to 2 feet from the objects.

3. Hold the device vertically and rest your elbow on your body to help stabilize your arm.

4. Start scanning by slowly panning back and forth to the left and right of the starting point. Follow the directions that appear on the device screen.

Note: The calibration process takes approximately 5 minutes.

iPhone 12 Pro Max

Speaker

Before You Begin

Speaker | Before You Begin

Warning

Read

Battery Safety

and follow workspace and battery handling guidelines before you begin.

Remove the following part before you begin:

•

Display

Tools

• 6.7-inch repair tray

• ESD-safe tweezers

• JCIS bit

• Nylon probe (black stick)

• Torque driver (black, 0.35 kgf cm)

Important

This procedure requires a replacement battery shim, which is available with a replacement speaker,

Taptic Engine, or battery.

iPhone 12 Pro Max

Removal

1. Place the enclosure in the repair tray with the Lightning connector facing the cutout.

Speaker | Removal

2. Run the flat end of the black stick between the battery shim and the Taptic Engine and speaker to loosen the battery shim.

3. Use a torque driver and the

JCIS bit to remove the four crosshead screws from the speaker. Set aside the screws.

iPhone 12 Pro Max

4. Use ESD-safe tweezers to remove the battery shim from the enclosure. Discard the shim.

5. Use the black stick to tilt up the speaker. Then remove the speaker from the enclosure.

Speaker | Removal

iPhone 12 Pro Max

Reassembly

1. Rotate the repair tray.

Ensure that the rubber gasket is positioned as shown. If the gasket is out of position, use ESD-safe tweezers to reposition it.

Speaker | Reassembly

2. Ensure that the speaker foam is intact and the grounding springs on the speaker aren’t bent or broken.

3. Rotate the repair tray. Align the port on the speaker with the hole in the enclosure. Then lower the speaker into position.

iPhone 12 Pro Max

4. Use the black torque driver and JCIS bit to install four new crosshead screws into the speaker.

5. Remove the adhesive release liner from the replacement battery shim.

6. Use ESD-safe tweezers to position the replacement battery shim between the top edges of the

Taptic Engine and speaker and the bottom edge of the battery. Ensure that the adhesive side of the shim faces the Taptic Engine and speaker.

Speaker | Reassembly

iPhone 12 Pro Max

7. Run the flat end of the black stick between the replacement battery shim and the bottom edge of the battery to adhere the shim to the Taptic Engine and speaker.

Reinstall the following part to complete reassembly:

•

Display

Speaker | Reassembly

iPhone 12 Pro Max

Taptic Engine

Before You Begin

Taptic Engine | Before You Begin

Warning

Read Battery Safety

and follow workspace and battery handling guidelines before you begin.

Important

Remove the following parts before you begin:

•

Display

•

Speaker

Tools

• 6.7-inch repair tray

• ESD-safe tweezers

• JCIS bit

• Nylon probe (black stick)

• Super screw bit

• Torque driver (black, 0.35 kgf cm)

• Torque driver (gray, 0.55 kgf cm)

• Torque driver (green, 0.45 kgf cm)

iPhone 12 Pro Max Taptic Engine | Removal

Removal

1. Place the enclosure in the repair tray with the Lightning connector facing the cutout.

2. Use a torque driver and the JCIS bit to remove the crosshead screw from the

Taptic Engine cowling. Set aside the screw.

3. Use ESD-safe tweezers to remove the Taptic Engine cowling. Save the cowling for reassembly.

4. Use a torque driver and the super screw bit to remove the two super screws from the Taptic Engine. Set aside the screws.

iPhone 12 Pro Max

5. Use a torque driver and the

JCIS bit to remove one crosshead screw from the

Taptic Engine. Set aside the screw.

6. Use the black stick to lift the end of the Taptic Engine flex cable off the connector.

Taptic Engine | Removal

7. Use ESD-safe tweezers to remove the Taptic Engine.

iPhone 12 Pro Max

Reassembly

1. Position the Taptic Engine in the enclosure.

2. Press the end of the

Taptic Engine flex cable to the connector.

Taptic Engine | Reassembly

3. Use the gray torque driver and super screw bit to install two new super screws into the Taptic Engine.

iPhone 12 Pro Max

4. Use the green torque driver and JCIS bit to install one new crosshead screw into the Taptic Engine.

Taptic Engine | Reassembly

5. Use ESD-safe tweezers to position the Taptic Engine cowling in the enclosure.

6. Use the black torque driver and JCIS bit to install one new crosshead screw into the Taptic Engine cowling.

Reinstall the following parts to complete reassembly:

•

Speaker

•

Display

iPhone 12 Pro Max

Battery

Before You Begin

Battery | Before You Begin

Warning

• A battery should be replaced only by individual technicians with the knowledge and experience to repair electronic devices. Improper battery replacement, improper handling of parts, or failure to follow the provided instructions could result in fire, injury, data loss, or damage to the device, parts, or other property.

• Read Battery Safety and follow workspace and battery handling guidelines before you begin.

Important

Remove the following parts before you begin:

•

Display

•

Speaker

•

Taptic Engine

Tools

• 6.7-inch repair tray

• Battery press

• ESD-safe cleaning solution

• ESD-safe tweezers

• Ethanol wipes or isopropyl alcohol

(IPA) wipes

• Heat-resistant gloves

• Nitrile or lint-free gloves

• Nylon probe (black stick)

• Safety glasses with side shields

• Sand

• Sand container

iPhone 12 Pro Max

Caution

To avoid damaging the lenses, don’t touch the TrueDepth camera assembly or nearby parts.

Battery | Before You Begin

Important

• This procedure requires

System Configuration

. After you’ve completed all removal and reassembly steps, learn how to initiate the System Configuration process at support.apple.com/self-service-repair .

• This procedure requires a replacement battery shim, which is available with a replacement speaker, Taptic Engine, or battery.

iPhone 12 Pro Max

Removal

1. Place the enclosure in the repair tray with the Lightning connector facing the cutout.

Battery | Removal

2. Use ESD-safe tweezers to grasp the bottom right battery adhesive tab. Gently peel the adhesive tab away from the battery.

Warning

Don’t scrape or puncture the battery with the tweezers.

Important

Peel the adhesive tab completely away from the battery before continuing to step 3.

3. Hold down the iPhone. Use ESD-safe tweezers to grasp the bottom half of the battery adhesive tab and slowly pull it outward.

4. Keep the tweezers close and parallel to the battery and twist until you see white adhesive strip on the tweezers.

Important

Don’t pull the tweezers until the white adhesive is wrapped around them.

iPhone 12 Pro Max

5. Pull the tweezers toward the bottom of the iPhone and continue to twist the adhesive strip until you’ve removed the entire strip.

Caution

Don’t pull the adhesive strip against parts or screws.

Important

If the battery adhesive tab or strip breaks off and you can still see it, attempt to retrieve it with the tweezers. Wrap the tab or strip around the tweezers and repeat steps 4 and 5.

If you can’t see the tab or strip, continue to step 6.

Battery | Removal

6. Use ESD-safe tweezers to grasp the bottom left battery adhesive tab. Gently peel the adhesive tab away from the battery.

Important

Peel the battery adhesive tab completely from the battery before continuing to step 7.

7. Repeat steps 3 through 5 to remove the bottom left adhesive strip from the battery. If you remove the entire strip, continue to step 8.

Important

If the battery adhesive tab or strip breaks off and you can still see it, attempt to retrieve it with the tweezers. Wrap the tab or strip around the tweezers and repeat steps 4 and 5. If you can’t see the tab or strip, continue to step 8.

iPhone 12 Pro Max

8. Rotate the repair tray and put on the nitrile or lint-free gloves.

9. Use ESD-safe tweezers to gently peel both battery adhesive tabs from the top of the battery.

Battery | Removal

10. Hold down the iPhone. Use ESD-safe tweezers to grasp one battery adhesive tab. Twist the tweezers to wrap the adhesive strip around them.

Important

Hold the tweezers close and parallel to the battery as you twist.

iPhone 12 Pro Max

11. Keep the tweezers in the channel between the battery and the shim. Continue to slowly twist the tweezers until you’ve removed the entire battery adhesive strip.

Important

If the battery adhesive tab or strip breaks off and you can still see it, attempt to retrieve it with the tweezers. Wrap the tab or strip around the tweezers and repeat step 11. If you can’t see the tab or strip, continue to step 12.

Battery | Removal

12. Repeat steps 10 and 11 to remove the remaining adhesive strip from the top of the battery. If you remove the entire strip, continue to step 13.

Important

13. If all four battery adhesive strips were fully removed, continue to step 15. If at least one strip was fully removed, continue to step 14.

Warning

If all four strips were broken and can’t be retrieved, don’t forcibly pry the battery. Stop the repair.

You can find a service option at support.apple.com/repair .

iPhone 12 Pro Max

Caution

When using the black stick to remove the battery from the enclosure, don’t damage the flex cables.

Don’t scrape, rip, tear, or otherwise damage the polyester film or other areas. If damage occurs, replace the iPhone.

14. Insert the flat end of the black stick into one of the insertion points as shown.

Ensure that the black stick is inserted into a point where the battery strip has been fully removed. Don’t insert the black stick into a point where the battery tab or strip is broken.

Battery | Removal

073-00293-A | 76

iPhone 12 Pro Max Battery | Removal

15. Slightly lift the battery with the black stick just enough to grasp underneath the battery.

Caution

To avoid damage, don’t press the black stick on the edge of the enclosure as you lift the battery.

16. Remove the battery from the enclosure. Then inspect the enclosure for damage. If the enclosure is damaged, replace the iPhone.

Warning

If you can’t remove the battery, stop the repair. You can find a service option at support.apple.com/repair .

iPhone 12 Pro Max

Reassembly

1. Use ethanol wipes or IPA wipes on the area shown in blue to remove any remaining adhesive from the enclosure.

Caution

Don’t use ethanol wipes or IPA wipes on the areas outlined in red. Ethanol or isopropyl alcohol may damage the polyester film and wireless charging unit.

Warning

Inspect the enclosure for loose or extra screws and small parts, which can damage the battery and cause safety issues.

2. Reinstall the

Taptic Engine

Important

Ensure that a new super screw is installed in the top right corner of the Taptic Engine.

3. Complete

speaker reassembly steps 1 through 4.

4. Remove the adhesive release liner from the replacement battery shim.

Battery | Reassembly

iPhone 12 Pro Max

5. Position the replacement battery shim on the top edges of the Taptic Engine and speaker. Ensure that the adhesive side of the shim faces the Taptic Engine and speaker.

6. Use the flat end of the black stick to adhere the battery shim to the Taptic Engine and speaker.

Battery | Reassembly

iPhone 12 Pro Max

7. Peel the pink release liner from the underside of the replacement battery.

Important

Don’t remove the battery protective cover from the top of the battery yet.

8. Hold the battery over the enclosure with the protective cover faceup.

Align the bottom of the battery with the

Taptic Engine (1) and the right edge with the enclosure (2). Then lower the battery into the enclosure.

Battery | Reassembly

iPhone 12 Pro Max

9. The center of the repair tray has two slots. Position the repair tray and enclosure onto the battery press with the left slot over the pin.

10. Flip down the red lever to lower the roller onto the battery.

Battery | Reassembly

iPhone 12 Pro Max

11. Slide the repair tray back and forth through the battery press three times to adhere the battery to the enclosure.

12. Flip up the red lever.

Battery | Reassembly

iPhone 12 Pro Max

13. Position the repair tray and enclosure onto the battery press with the right slot over the pin.

Battery | Reassembly

14. Flip down the red lever.

iPhone 12 Pro Max

15. Slide the repair tray back and forth through the battery press three times to adhere the battery to the enclosure.

16. Flip up the red lever.

Battery | Reassembly

iPhone 12 Pro Max

17. Remove the repair tray from the battery press.

18. Hold the edges of the protective cover. Pull the release tabs on the protective cover to remove the cover from the battery.

Important

Don’t press the area over the tab you are releasing.

Caution

Don’t touch the grounding springs near the Taptic Engine.

Battery | Reassembly

Reinstall the following part to complete reassembly:

•

Display

Warning

Gently shake the iPhone. If the battery sounds loose, remove the display

and the battery . Then

complete battery reassembly with another replacement battery.

Important

After you’ve completed all removal and reassembly steps, learn how to initiate the System

Configuration process at support.apple.com/self-service-repair .

Micro stix® is a registered trademark of OSG CORPORATION. Torx® is a registered trademark of Acument Intellectual Properties, LLC.

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