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简介

Use this guide to replace the logic board in a 2018 MacBook Air.

Note that Touch ID will not function after replacing the logic board. The MacBook’s original Touch ID sensor is uniquely paired to the T2 chip on the logic board at the factory—and without Apple’s proprietary calibration process, even a genuine replacement logic board from another MacBook Air won’t work.

If you replace the logic board, you must install a paired Touch ID sensor to retain Touch ID functionality.

  1. Before starting this procedure, you must disable your Mac's Auto Boot feature. Auto Boot powers on your Mac when you open the lid, and may be accidentally triggered during disassembly. Use this guide or follow the abbreviated instructions below to disable Auto Boot.
    • Before starting this procedure, you must disable your Mac's Auto Boot feature. Auto Boot powers on your Mac when you open the lid, and may be accidentally triggered during disassembly. Use this guide or follow the abbreviated instructions below to disable Auto Boot.

    • Completely power off and unplug your MacBook Air before you start. Close the display and flip the entire laptop upside-down.

    • Use a P5 driver to remove the following screws:

    • Two 7.9 mm screws

    • Two 7.1 mm screws

    • Six 2.6 mm screws

  2. Wedge your fingers between the display and the lower case and pull upward to pop the lower case off the Air.
    • Wedge your fingers between the display and the lower case and pull upward to pop the lower case off the Air.

    • Remove the lower case.

  3. Peel back the tape covering the battery connector enough to reveal the connector underneath.
    • Peel back the tape covering the battery connector enough to reveal the connector underneath.

  4. Use a spudger to slide the battery connector parallel to the logic board and out of its socket on the logic board. Use a spudger to slide the battery connector parallel to the logic board and out of its socket on the logic board.
    • Use a spudger to slide the battery connector parallel to the logic board and out of its socket on the logic board.

  5. Use a T3 Torx driver to remove the two 1.4 mm screws securing the trackpad connector bracket. Remove the trackpad connector bracket.
    • Use a T3 Torx driver to remove the two 1.4 mm screws securing the trackpad connector bracket.

    • Remove the trackpad connector bracket.

  6. Use the flat end of a spudger to pry the trackpad cable connector up and out of its socket. Use the flat end of a spudger to pry the trackpad cable connector up and out of its socket.
    • Use the flat end of a spudger to pry the trackpad cable connector up and out of its socket.

  7. 跳过升级

    通过使用多合一工具包维修可以节省成本。

    购买 iPhone 维修工具套装

    跳过升级

    通过使用多合一工具包维修可以节省成本。

    购买 iPhone 维修工具套装
  8. Slide the tip of a spudger underneath the speaker cable and pry straight up to disconnect the speaker. With the connector disconnected, slide the flat end of a spudger under the cable to separate the adhesive securing the cable to the logic board. With the connector disconnected, slide the flat end of a spudger under the cable to separate the adhesive securing the cable to the logic board.
    • Slide the tip of a spudger underneath the speaker cable and pry straight up to disconnect the speaker.

    • With the connector disconnected, slide the flat end of a spudger under the cable to separate the adhesive securing the cable to the logic board.

  9. Use a T3 Torx driver to remove the two 1.3 mm screws securing the USB-C port connector bracket. Remove the USB-C connector bracket.
    • Use a T3 Torx driver to remove the two 1.3 mm screws securing the USB-C port connector bracket.

    • Remove the USB-C connector bracket.

  10. Use the flat end of a spudger to pry the USB-C cable connector up and out of its socket on the logic board. Use the flat end of a spudger to pry the USB-C cable connector up and out of its socket on the logic board.
    • Use the flat end of a spudger to pry the USB-C cable connector up and out of its socket on the logic board.

  11. Use a spudger to lift up the small locking flap on the sound board cable's ZIF connector. Slide the sound board cable out of the ZIF connector. Slide the sound board cable out of the ZIF connector.
    • Use a spudger to lift up the small locking flap on the sound board cable's ZIF connector.

    • Slide the sound board cable out of the ZIF connector.

  12. Peel back the black tape covering the fan cable connector.
    • Peel back the black tape covering the fan cable connector.

  13. Use the tip of a spudger to lift up the locking flap on the fan cable's ZIF connector. Slide the fan cable out of the ZIF connector. Slide the fan cable out of the ZIF connector.
    • Use the tip of a spudger to lift up the locking flap on the fan cable's ZIF connector.

    • Slide the fan cable out of the ZIF connector.

  14. Use a T3 Torx driver to remove the two 1.4 mm screws securing the antenna cable bracket. Remove the antenna cable bracket.
    • Use a T3 Torx driver to remove the two 1.4 mm screws securing the antenna cable bracket.

    • Remove the antenna cable bracket.

  15. Insert the point of a spudger under one of the antenna cables close to the connector. Pry straight up to disconnect the cable. Repeat for the other antenna cable. Repeat for the other antenna cable.
    • Insert the point of a spudger under one of the antenna cables close to the connector. Pry straight up to disconnect the cable.

    • Repeat for the other antenna cable.

  16. Use a T3 Torx driver to remove the two 1.5 mm screws securing the display cable connector bracket. Remove the display cable connector bracket.
    • Use a T3 Torx driver to remove the two 1.5 mm screws securing the display cable connector bracket.

    • Remove the display cable connector bracket.

  17. Use the flat end of a spudger to pry up the display cable connector. Use the flat end of a spudger to pry up the display cable connector.
    • Use the flat end of a spudger to pry up the display cable connector.

  18. Use a T4 Torx driver to remove the following screws:
    • Use a T4 Torx driver to remove the following screws:

    • One 5.5 mm screw

    • Three 2.6 mm screws

    • Two 1.9 mm screws

  19. Remove the logic board.
    • Remove the logic board.

结论

Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.

To reassemble your device, follow the above steps in reverse order.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Check out our Answers community for troubleshooting help.

3等其他人完成本指南。

Adam O'Camb

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