Apple MacBook Pro (16-inch, 2021) Repair User Manual

  • Post last modified:May 17, 2023
  • Post category:Apple

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Apple MacBook Pro (16-inch, 2021) Repair

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Introduction

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

Warranty Information

Damage caused by repairs performed outside of Apple or the Apple Authorized Service Provider 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.

Tools and Parts

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 HFXVCU 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

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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 macOS 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.

Exploded View and Orderable Parts

This section shows parts, part names, and part numbers for MacBook Pro (16-inch, 2021).

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Screws

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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.

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  1. Clean, dry, untreated sand (8–10 cups)
  2. Sand container (wide-mouthed, quick pour, non breakable plastic container with a flip-top lid)

Battery Safety

How to set up a workspace for battery safety
Tools

  • Clean, dry, untreated sand (8–10 cups)
  • Sand container (wide-mouthed, quick pour, non breakable plastic container with a flip-top lid)
  • Heat-resistant gloves
  • Safety glasses with side shields
  • ESD-safe cleaning solution
  • Fireproof enclosure

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 one side of the workspace, not above the workspace
  • Adequate ventilation
  • Within 20 feet of a fireproof safety enclosure. Don’t store combustible or flammable materials in the enclosure. Ensure that the enclosure remains empty.

How to Handle Batteries

Discharge the Battery

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.

Use a Battery Cover

Avoid damaging the battery by performing the following actions:

  • Immediately after removing the bottom case, follow the instructions to attach the battery cover and disconnect the battery from the logic board.
  • Always keep the battery cover on the battery when it’s exposed.
  • Only remove the battery cover immediately before you install the bottom case, unless otherwise instructed.

The following actions will help to discharge the battery:

  • Disconnect the power cable.
  • Increase display brightness to the highest setting.
  • Turn on Wi-Fi and Bluetooth.
  • Open the FaceTime app or Photo Booth app to turn on the camera.
  • Play a video from the local drive or a streaming service.

First Steps
Always perform the following steps before starting a repair:

  • Back up the Mac.
  • If replacing the logic board or Touch ID board, turn off Find My Mac. Choose Apple Menu > System Preferences > Apple ID. Select iCloud in the sidebar. Then deselect the Find My Mac checkbox. If you’re unable to access the Apple menu, continue performing the following steps.
  • Discharge the battery fully.
  • Turn off the Mac.
  • If you were unable to turn off Find My Mac from the Apple menu, go to iCloud.com/find on a different device. Select All Devices. Select the device you want to remove. Then select Remove from Account.
  • Unplug the power cable from the electrical outlet. Keep the power cable unplugged while the device is being repaired.
  • 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.

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 screwdrivers will make it easier to work with small screws.
  • Use only Kapton tape to secure cables and keep them out of the way when removing and reinstalling parts.
  • 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.

Keys

Before You Begin

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Tools

  • Compressed air
  • ESD-safe tweezers
  • Keycap levers (Some link bar keycaps require two keycap levers for removal)
  • Microterry polishing cloth
  • Needle-nose pliers
  • Nylon probe (black stick)
  • Precut adhesive strips (1×0.5)
  • Precut adhesive strips (1×1)

Clean the keyboard thoroughly with compressed air before you replace a missing keycap or a keycap on an unresponsive key.

Keyboard Identification
Determine your keyboard design by comparing your Return key to the images:

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Removal

  • Lightly press the large end of the keycap lever and the adhesive onto the key.
  • Peel the frosted liner from one side of the 1×1 precut adhesive strips. Press and hold the large end of the keycap lever on the adhesive for 10 seconds.
  • Lift the keycap lever and the adhesive to separate them from the white liner.
  • Hold the keycap lever on the key for 10 seconds to activate the adhesive.
  • Tilt up the keycap lever in the direction of the arrow until you feel the snaps release.
  • Lift the keycap off the keyboard.
  • Use the black stick to gently move the scissor mechanism up and down. Ensure that the scissor mechanism moves easily and lies flat when released. If it does not, replace the scissor mechanism.
  • Inspect the well of the keycap:
  • Use the black stick to press and release the dome through the top of the scissor mechanism the dome should spring back upright. If the dome is damaged or not centered, replace the top case.
  • If a lower hook is bent, try to bend it back to a 90-degree angle.
  • If an upper hook is bent, use needle-nose pliers to straighten it.
  • If any lower hook or upper hook is broken or bent beyond repair, replace the top case.
  • Use compressed air to clean the well of the keycap.
  • Remove the keycap and adhesive from the keycap lever. Discard the keycap and adhesive.

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Reassembly

  • Gently push the hinged side of the replacement keycap into the hinged side of the well at a 15 degree angle until the hinges engage.
  • Gently press the top of the keycap to engage the snaps.
  • Tap the key repeatedly to check that it springs back each time. Compare the response of the replacement keycap with the response of the keycaps around it.
  • If the keycap doesn’t appear to be correctly installed, repeat all removal and reassembly steps with a new keycap.

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Removal

  • Peel the frosted liner from one side of the 1×0.5 precut adhesive strips. Press and hold the small end of the keycap lever on the adhesive for 10 seconds.
  • Lift the keycap lever and the adhesive to separate them from the white liner.
  • Push the keycap lever toward the hinge to release the keycap (1). Lift up the keycap lever to release the keycap from the snaps (2).
  • Inspect the scissor mechanism and well of the keycap:
    • Use compressed air to clean the well of the keycap.
    • Use the black stick to gently move the scissor mechanism up and down (1). Verify that the scissor mechanism moves easily and lies flat when released. If it does not, replace the scissor mechanism.
    • Use the black stick to press and release the dome through the top of the scissor mechanism the dome should spring back upright. If the dome is damaged or not centered, replace the top case.
    • If a lower hook is bent, try to bend it back to a 90-degree angle.
    • If an upper hook is bent, use needle-nose pliers to straighten it.
    • If any lower hook or upper hook is broken or bent beyond repair, replace the top case.
  • Remove the keycap and adhesive from the keycap lever. Discard the keycap and adhesive.

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Reassembly

  • Use the black stick to lift the scissor slightly (1). Insert the hinged side of the replacement keycap into the well at a 15-degree angle as shown (2). Slide the keycap back toward the snap to engage the hinge (3).
  • Remove the black stick and gently press the top of the keycap to engage the snaps.
  • Tap the key repeatedly to check that it springs back each time. Compare the response of the replacement keycap with the response of the keycaps around it.
  • If the keycap doesn’t appear to be correctly installed, repeat all removal and reassembly steps with a new keycap.

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  • Blue bars show the location of snaps.
  • Green lines show the location of link bars.

Removal

  • Identify the location of the snaps under the key that you need to replace using the Link Bar Key Maps.
  • Peel the frosted liner from one side of the 1×1 precut adhesive strips. Press and hold the large end of the keycap lever on the adhesive for 10 seconds. Lift the keycap lever and the adhesive to separate them from the white liner.
  • Place the keycap lever on its side. Repeat step 2 with the second keycap lever, then continue to step 4.
  • Align the keycap levers over the snaps.
  • Lightly press the adhesive ends of the keycap levers onto the key.
  • Hold the keycap levers and adhesive on the key for 10 seconds to activate the adhesive.
  • Tilt up the keycap levers in the direction of the arrows until you feel the snaps release.

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  • Remove the keycap.
  • Use compressed air to clean the well of the keycap.
  • Remove the keycap and adhesives from the keycap lever. Discard the keycap and adhesives.
  • Inspect the scissor mechanisms and keycap wells.
    • Use the black stick to gently move each scissor mechanism up and down. Verify that each scissor mechanism moves easily and lies flat when released. If it does not, replace the scissor mechanism.
    • Use the black stick to press and release each dome through the top of the scissor mechanism a dome should spring back upright. If a dome is damaged or not centered, replace the top case.
    • If a lower hook is bent, try to bend it back to a 90-degree angle.
    • If an upper hook is bent, use needle-nose pliers to straighten it.
    • If any lower hook or upper hook is broken or bent beyond repair, replace the top case.

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Reassembly

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  • Push the keycap forward to set the top link bar in place.
  • Tap the key repeatedly to verify that it springs back each time. If the keycap doesn’t appear to be correctly installed, repeat all removal and reassembly steps with a new keycap.
  • Gently press the snaps and scissor mechanisms as shown to engage the keycap. You can find the snap locations in the Link Bar Key Maps.

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Removal

  • Use the black stick to disengage the scissor pins from the lower hooks.
  • Use tweezers to lift the scissor mechanism out of the well.
  • Inspect the well of the keycap:
    • When you press and release the dome, it should spring back upright. If the dome is damaged or not centered, replace the top case.
    • If a lower hook is bent, try to bend it back to a 90-degree angle.
    • If an upper hook is bent, use needle-nose pliers to straighten it.
    • If any lower hook or upper hook is broken or bent beyond repair, replace the top case.

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Reassembly

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Bottom Case

Before you Begin

Tools

  • Battery cover
  • Cut-resistant gloves
  • ESD-safe tweezers
  • Microterry polishing cloth
  • Nylon probe (black stick)
  • Pentalobe screwdriver
  • Permanent marker
  • Suction cup
  • Torx T3 screwdriver
  • Torx T5 screwdriver

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Removal

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Reassembly

  • Use the black stick to gently fold back the BMU and trackpad flex cables (1). Then use the T5 screwdriver to reinstall the T5 screw (923-06849) (2).
  • Gently press along the length of the BMU flex cable to adhere it to the T5 screw and logic board.
  • Press the end of the trackpad flex cable to the connector on the logic board.

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  • Feel the spring fingers lock as you push the bottom case.
  • Lift the front edge of the bottom case no more than 1 inch (2.5 cm) to align the thermal fan ducts.
  • Use the pentalobe screwdriver to reinstall the four long pentalobe screws into the rear of the bottom case.

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Battery Management Unit Flex Cable

Before You Begin

Remove the following part before you begin:

  • Bottom case

Tools

  • ESD-safe tweezers

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Removal

  • Peel back the polyester film tab from the locking lever of the BMU flex cable.
  • Fold back the trackpad flex cable to access the BMU flex cable.
  • Use the black stick to flip up the locking lever of the BMU flex cable connector.

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Reassembly

  • Use ESD-safe tweezers to slide the end of the BMU flex cable into the connector.
  • Use the black stick to flip down the locking lever on the BMU flex cable connector.
  • Press the polyester film tab over the connector.
  • Reinstall the following part to complete reassembly:
    • Bottom case

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Lid Angle Sensor

Before You Begin

Tools

  • Nylon probe (black stick)
  • Torque driver (blue, 0.65 kgf cm)
  • Torx security bit
  • Torx T3 screwdriver

Remove the following part before you begin:

  • Bottom case

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Removal

  • Use the T3 screwdriver to remove the two T3 screws (923-06854) from the lid angle sensor connector cowling. Remove the cowling and save it for reassembly.
  • Use the black stick to lift the end of the lid angle sensor flex cable off the connector.

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Reassembly

  • Position the lid angle sensor in the top case.
  • Position the clip on the lid angle flex cable so the slot and screw hole on the clip are aligned with the pin and screw hole in the top case.
  • Use the blue torque driver and the Torx security bit to reinstall the 1IPR screw (923-06852) into the lid angle sensor flex cable clip.
  • Use the black stick to press the end of the lid angle sensor flex cable to the connector.
  • Position the lid angle sensor connector cowling over the end of the lid angle sensor flex cable. Then use the T3 screwdriver to reinstall the two T3 screws (923- 06854) into the lid angle sensor connector cowling.
  • Reinstall the following part to complete reassembly:
    • Bottom Case

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Trackpad and Trackpad Flex Cable

Before You Begin

Tools

  • Adjustable torque driver (10–34 Ncm)
  • ESD-safe tweezers
  • Gap offset kit
  • Kapton tape
  • Nylon probe (black stick)
  • Sticky notes (3 by 3 inches)
  • Torx T5 bit
  • Torx T5 screwdriver

Remove the following part before you begin:

  • Bottom case

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Removal

  • Open the display to a 90-degree angle. Then place the computer on the edge of the table with the display hanging down.
  • Use the T5 screwdriver to remove the ten outer T5 screws (923-06953).
  • Use the T5 screwdriver to remove the three inner T5 screws (923-06954).
  • Hold the battery cover by the edges. Then lift it off the top case.
  • Gently peel the trackpad flex cable off the battery.
  • Lift the computer off the table and allow the trackpad flex cable to pass through the opening in the top case. Leave the trackpad flat on the table to keep the shims in place.
  • Place the computer on the edge of the table with the display hanging down.
  • Place the battery cover on the battery. Then press the black tabs into the clips on the top case until you feel a click.
  • Flip up the locking lever on the trackpad flex cable connector (1). Then slide the end of the trackpad flex cable out of the connector (2).

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Reassembly

  • Slide the end of the replacement trackpad flex cable into the connector on the trackpad (1). Then flip down the locking lever (2).
  • Use ESD-safe tweezers to install replacement trackpad shims. Position four longer shims on the outer screw holes (1). Then position five smaller circular shims on the middle screw holes (2).
  • Hold the battery cover by the edges and lift it off the top case.
  • Ensure that the trackpad lies flat on the table with the trackpad flex cable extended away from you.
  • Route the trackpad flex cable back through the opening in the top case.
  • Lay the trackpad flex cable flat.
  • Place the battery cover on the battery and press the black tabs into the clips on the top case until you feel a click.
  • Use the T5 screwdriver to partially reinstall the four outer T5 screws (923-06953) into the outer screw holes to align the trackpad.
  • Slowly lower the computer over the trackpad and align the screw holes in the top case with the screw holes in the trackpad. Let the display hang over the table edge.
  • Turn over the computer. Insert four gap offsets into the corners of the trackpad. Secure each gap offset with a piece of Kapton tape.
  • Stand the computer on its side with the display still open. Then use the T5 screwdriver to fully reinstall the four outer T5 screws.
  • Place the computer right side up. To verify the top of the trackpad is at the correct height, align one sticky note on the trackpad’s top edge. Ensure that the sticky note is flush with the top case.
  • To verify the bottom of the trackpad is at the correct height, align a stack of two sticky notes on the trackpad’s bottom edge. Ensure that the two sticky notes are flush with the top case.
  • If the trackpad is at the correct height, continue to step 15. If the trackpad edges are higher or lower than the top case, remove the sticky notes, gap offsets, and Kapton tape. Place the computer on the edge of the table with the display hanging down. Use the T5 screwdriver to remove the four outer side T5 screws and repeat removal steps 2 through 7. Then follow reassembly steps 1 through 13.
  • Place the computer on the edge of the table with the display hanging down.
  • Insert the Torx T5 bit into the 10–34 Ncm adjustable torque driver. Set the torque value to 16 Ncm.
  • Use the 10–34 adjustable torque driver and T5 bit to partially reinstall the remaining six outer T5 screws (923-06953).
  • Use the 10–34 adjustable torque driver and T5 bit to partially reinstall the three inner T5 screws (923-06954).
  • Use the 10–34 adjustable torque driver and T5 bit to fully reinstall all 13 screws to 16 Ncm. Turn each screw until the adjustable torque driver clicks.
  • Hold the battery cover by the edges and lift it off the top case.
  • Reinstall the following part to complete reassembly:
    • Bottom case
  • Place the battery cover on the battery and press the black tabs into the clips on the top case until you feel a click.
  • Turn over the computer. Then use the flat end of the black stick to lift the gap offsets and Kapton tape off the trackpad.
  • Gently press along the trackpad flex cable to adhere it to the battery.

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Vent/Antenna Module

Before You Begin

Tools

  • Antenna tool
  • ESD-safe tweezers
  • Nylon probe (black stick)
  • Torque driver (blue, 0.65 kgf cm)
  • Torx security bit
  • Torx T3 screwdriver
  • Torx T5 screwdriver

Remove the following part before you begin:

  • Bottom case

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Removal

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  • Use the T5 screwdriver to remove the two long T5 screws (923-06850) (1) and the four short T5 screws (923-06855) (2) from the vent/antenna module.
  • Use a torque driver and the Torx security bit to remove the nine 1IPR screws (923-06856) from the vent/antenna module.
  • Lift the vent/antenna module out of the top case.

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Reassembly

  • Use the T5 screwdriver to reinstall the two long T5 screws (923-06850) (1) and (923-06855) the four short T5 screws (2) into the vent/antenna module.
  • Position the ends of the antenna coaxial cables over the three connectors. Then use the blunt end of the antenna tool to press the ends of the antenna coaxial cables to the connectors.

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  • Position the antenna coaxial cable cowling over the ends of the cables (2).
  • Use the T3 screwdriver to reinstall the T3 screw (923-06851) into the antenna coaxial cable grounding clip (1) and the two T3 screws (923-06851) into the antenna coaxial cable cowling (2).
  • Reinstall the following part to complete reassembly:
    • Bottom case

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Display Hinge Covers

Before You Begin

Tools

  • ESD-safe tweezers
  • Torx T5 screwdriver

Remove the following parts before you begin:

  • Bottom case
  • Vent/antenna module

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Removal

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Reassembly

  • Use ESD-safe tweezers to position the two display hinge covers in the top case.
  • Use the T5 screwdriver to reinstall the two T5 screws (923-06853) into each display hinge cover.
  • Reinstall the following parts to complete reassembly:
    • Vent/antenna module
    • Bottom case

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Display

Remove the following parts before you begin:

  • Nylon probe (black stick)
  • Torx T3 screwdriver
  • Torx T8 screwdriver

Tools
Before You Begin

  • Bottom case
  • Vent/antenna module
  • Display hinge covers
  • Lid angle sensor

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Removal

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Reassembly

  • Remove the existing lid angle sensor and install a replacement lid angle sensor.
  • Position the display in the top case. Ensure that the hinges slide under the edge of the top case.

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  • Ensure the display backlight power flex cable, FaceTime HD camera flex cable, and eDP flex cable are inside the top case.
  • Close the display and stand the computer on its edge. Adjust the display until it’s flush with the top case.
  • Use the T8 screwdriver to partially reinstall the six T8 screws (923-06862) (1–6) into the display hinges in the order shown.
  • Place the computer facedown with the rear edge closest to you.
  • Use the T8 screwdriver to fully reinstall the six T8 screws into the display hinges.
  • Align the display flex cables around the edge of the bumpers (1). Then press the display flex cable clips down over the bumpers and onto the internal frame (2).
  • Position the display cable bumpers in the internal frame in the top case.
  • Use the flat end of the black stick to tuck the display cables into the gap between the display and internal frame.
  • Use the flat end of the black stick to tuck each display flex cable into the gap between the logic board and internal frame. Ensure that the display flex cable clips are fully clipped onto the internal frame.
  • Press the ends of the display backlight power flex cable (1), FaceTime HD camera flex cable (2), and eDP flex cable (3) to their connectors on the logic board.
  • Position the two display connector cowlings over the display backlight power flex cable, FaceTime HD camera flex cable, and eDP flex cable connectors. Then use the T3 screwdriver to reinstall the two T3 screws (923-06854) into each of the cowlings.
  • Reinstall the following parts to complete reassembly:
    • Lid angle sensor
    • Display hinge covers
    • Vent/antenna module
    • Bottom case

Logic Board

Before you Begin

Remove the following parts before you begin:

  • Bottom case
  • Vent/antenna module

Tools

  • #00 Phillips screwdriver
  • 4 mm hex nut driver
  • ESD-safe tweezers
  • Kapton tape
  • Nylon probe (black stick)
  • Torx T3 screwdriver
  • Torx T5 screwdriver
  • Torx T6 screwdriver

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Removal

  • Use the T3 screwdriver to remove the 21 T3 screws from the following 10 cowlings:
    • Two T3 screws from the lid angle sensor connector cowling (923-06854) (1)
    • Two T3 screws from the Mag Safe 3 connector cowling (923-06854) (2)
    • Three T3 screws from the left USB-C boards connector cowling (923-06854) (3)
    • Two T3 screws from the audio board connector cowling (923-06854) (4)
    • Two T3 screws from the left speaker connector cowling (923-06864, 923-06865) (5)
    • Two T3 screws from the right speaker connector cowling (923- 06864, 923-06865) (6)
    • Two T3 screws from the right USB-C board connector cowling (923-06854) (7)
    • Two T3 screws from the Touch ID board connector cowling (923-06854) (8)
    • Two T3 screws from the display connector cowling (923-06854) (9)
    • Two T3 screws from the display connector cowling (923-06854) (10)
  • Remove the 10 cowlings and save them for reassembly.

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Reassembly

  • Remove the existing Touch ID board and install a replacement Touch ID board.
  • Use the #00 Phillips screwdriver to remove the two #00 Phillips screws (1) from the heat sink on the replacement logic board.
  • Use the #00 Phillips screwdriver to fully loosen the six captive #00 Phillips screws (2) from the top stiffeners on the replacement logic board. Lift the top stiffeners off the replacement logic board and set them aside.
  • Position the existing logic board over the bottom stiffeners. Align the screw holes in the existing logic board with the screw holes in the bottom stiffeners.
  • Lift the replacement logic board off the bottom stiffeners and set it aside.
  • Position the top stiffeners on the existing logic board. Align the screw holes in the top stiffeners with the screw holes in the existing logic board.
  • Fold back the thermal duct covers and flex cables and secure them to the top case with Kapton tape as shown.
  • Hold the logic board by the edges. Lower one edge of the logic board into the top case as shown (1). Then lower the other edge of the logic board into the top case (2). Move any loose cables out of the way as you install the logic board.
  • Press the ends of the following 12 flex cables to the connectors on the logic board:
    • Lid angle sensor flex cable (1)
    • MagSafe 3 flex cable (2)
    • Left USB-C boards flex cables (3–4)
    • Audio board flex cable (5)
    • Left speaker flex cable (6)
    • Right speaker flex cable (7)
    • Right USB-C board flex cable (8)
    • Touch ID board flex cable (9)
    • Display backlight flex cable (10)
    • FaceTime HD camera flex cable (11)
    • eDP flex cable (12)
  • Use ESD-safe tweezers to position the following 10 cowlings (1–10) in the top case:
    • Lid angle sensor connector cowling (1)
    • Mag Safe 3 connector cowling (2)
    • Left USB-C boards connector cowling (3)
    • Audio board connector cowling (4)
    • Left speaker connector cowling (5)
    • Right speaker connector cowling (6)
    • Right USB-C board connector cowling (7)
    • Touch ID board connector cowling (8)
    • Display connector cowling (9)
    • Display connector cowling (10)
  • Use the T3 screwdriver to reinstall the following 21 screws into the 10 cowlings:
    • Two T3 screws into the lid angle sensor connector cowling (923-06854) (1)
    • Two T3 screws into the Mag Safe 3 connector cowling (923-06854) (2)
    • Three T3 screws into the left USB-C boards connector cowling (923-06854) (3)
    • Two T3 screws into the audio board connector cowling (923-06854) (4)
    • Two T3 screws into the left speaker connector cowling (923-06864, 923-06865) (5)
    • Two T3 screws into the right speaker connector cowling (923-06864, 923-06865) (6)
    • Two T3 screws into the right USB-C board connector cowling (923-06854) (7)
    • Two T3 screws into the Touch ID board connector cowling (923-06854) (8)
    • Two T3 screws into the display connector cowling (923-06854) (9)
    • Two T3 screws into the display connector cowling (923-06854) (10)
  • Reinstall the following parts to complete reassembly:
    • Vent/antenna module
    • Bottom case

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Audio Board

Before You Begin

Remove the following parts before you begin:

  • Bottom case
  • Vent/antenna module
  • Logic board

Tools

  • Ear Pods with 3.5 mm headphone plug
  • Torx T5 screwdriver

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Removal

  • Use the T5 screwdriver to remove the short T5 screw (923-06936) (1) and the long T5 screw (923 06937) (2) from the audio board.
  • Lift the audio board out of the top case.

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Reassembly

  • Position the audio board in the top case.
  • Use the T5 screwdriver to partially reinstall the short T5 screw (923-06936) (1) and the long T5 screw (923-06937) (2) into the audio board.

Apple-MacBook-Pro-2021-120

  • Plug the Ear Pods into the 3.5 mm headphone jack to ensure audio board alignment. Adjust the alignment of the audio board until the plug is easy to insert and remove.
  • Reinstall the following parts to complete reassembly:
    • Logic board
    • Vent/antenna module
    • Bottom case

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Fans

Before You Begin

Tools

  • Nylon probe (black stick)
  • Torx T3 screwdriver
  • Torx T5 screwdriver

Remove the following parts before you begin:

  • Bottom case
  • Vent/antenna module
  • Logic board

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Removal

  • Use the flat end of the black stick to gently peel the fan flex cables off the top case.
  • Use ESD-safe tweezers to peel the screw covers off the two lower T3 screws. Save the screw covers for reassembly.

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Reassembly

  • Position the fans in the top case.
  • Use the T5 screwdriver to reinstall the four T5 screws (923-06929) into the fans.
  • Use the T3 screwdriver to reinstall the four T3 screws (923-06960) into the fans.
  • Press the screw covers onto the two lower T3 screws.
  • Press the fan flex cables to adhere them to the top case.
  • Reinstall the following parts to complete reassembly:
    • Logic board
    • Vent/antenna module
    • Bottom case

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Mag Safe 3 Board

Before You Begin

Tools

  • Torque driver (blue, 0.65 kgf cm)
  • Torx Plus 2IP 44 mm half-moon bit
  • Torx T5 screwdriver
  • USB-C to Mag Safe

Remove the following parts before you begin:

  • Bottom case
  • Vent/antenna module
  • Logic board

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Removal

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Reassembly

  • Position the MagSafe 3
    board in the top case.
    2. Use the T5 screwdriver to
    partially reinstall the two T5
    screws (923-06959) (1).
    3. Use the blue torque driver
    and the Torx Plus 2IP bit to
    partially reinstall the two 2IP
    set screws (923-06958)
    into the top case (2).
  • Plug the MagSafe 3 end of the USB-C to MagSafe 3 cable into the MagSafe 3 port to ensure MagSafe
  • 3 board alignment. Use the flat end of the black stick to hold the MagSafe 3 board in place to create
    an even gap between the MagSafe 3 connector and top case.
    5. Use the T5 screwdriver to
    fully reinstall the two T5
    screws (1).
    6. Use the blue torque driver
    and the Torx Plus 2IP bit to
    fully reinstall the two 2IP set
    screws (2).
  • Reinstall the following parts to complete reassembly:
    • Logic board
    • Vent/antenna module
    • Bottom case

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Touch ID Board

Before You Begin

Remove the following parts before you begin:

  • Bottom case
  • Vent/antenna module
  • Logic board
  • Fans (right only)

Tools

  • ESD-safe tweezers
  • Kapton tape
  • Nylon probe (black stick)
  • Torx T3 screwdriver
  • Touch ID alignment kit

Removal

  • Remove the rubber cover from the Touch ID board flexible cowling and save it for reassembly.
  • Use the T3 screwdriver to remove the four outer corner T3 screws (923-06955) (1) and the two middle T3 screws (923-06942) (2) from the Touch ID board flexible cowling.
  • Use ESD-safe tweezers to remove the Touch ID board flexible cowling from the top case. Save the cowling for reassembly.
  • Use ESD-safe tweezers to peel the Touch ID board flex cable from the top case.
  • Open the display to a 90-degree angle. Then place the computer on the table with the keyboard upright as shown.
  • Support the Touch ID board as you route the Touch ID flex cable through the slot in the top case. Remove the Touch ID board from the keyboard side of the top case.
  • Place the computer right side up. Spread the tips of the ESD-safe tweezers and use one tip to remove the shim from the circular recess under the Touch ID board.

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Reassembly

  • Set two Y-shaped alignment tools in the Touch ID opening in the top case as shown. Secure the Y shaped tools in the corner edges with Kapton tape.
  • Place the computer right side up with the display still open. Ensure that you place the computer on a clean surface to avoid damaging internal parts.
  • Use ESD-safe tweezers to remove the medium Touch ID shim from the shim kit.
  • Turn the top case right side up.
  • Remove the Kapton tape and Y-shaped alignment tools. Then ensure that the Touch ID button still clicks when pressed.
  • Look directly over the Touch ID sensor. The spaces on each side should appear equal, and the Touch ID sensor should align with the function keys. If the gaps around the sides are unequal, repeat reassembly steps 2–16.
  • Close the display and place the computer display-side down.
  • Reinstall the rubber cover over the Touch ID board flexible cowling.
  • Reinstall the following parts to complete reassembly:
    • Fans (right only)
      Logic board
    • Vent/antenna module
    • Bottom case

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USB-C Boards

Before You Begin

Tools

  • ESD-safe tweezers
  • Torx T5 screwdriver
  • USB-C charge cable

Remove the following parts before you begin:

  • Bottom case
  • Vent/antenna module
  • Logic board

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Removal

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Reassembly

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  • Plug one end of the USB-C charge cable into the port to ensure USB-C board alignment. Adjust the alignment of the USB-C board until the end of the cable is easy to insert and remove.
  • Unplug the USB-C charge cable from the port.
  • Reinstall the following parts to complete reassembly:
    • Logic board
    • Vent/antenna module
    • Bottom case
  • Use the T5 screwdriver to fully reinstall the two T5 screws with the USB-C charge cable still in the port.

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Top Case with Battery and Keyboard

Tools
Before You Begin

  • No tools are required for this procedure.

Remove the following parts before you begin:

  • Bottom case
  • Battery management unit flex cable
  • Lid angle sensor
  • Trackpad and trackpad flex cable
  • Vent/antenna module
  • Display hinge covers
  • Display
  • Logic board
  • Audio board
  • Fans
  • Mag Safe 3 board
  • Touch ID board
  • USB-C boards

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Removal

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Reassembly

Reinstall the following parts to complete reassembly:

  • USB-C boards
  • Touch ID board
  • Mag Safe 3 board
  • Fans
  • Audio board
  • Logic board
  • Display
  • Display hinge covers
  • Vent/antenna module
  • Trackpad and trackpad flex cable
  • Lid angle sensor
  • Battery management unit flex cable
  • Bottom case

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