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Use this guide to replace the microphone assembly in a 2019 MacBook Air.

To minimize risk of damage, turn on your MacBook and allow the battery to fully discharge before starting this procedure. A charged lithium-ion battery can be very dangerous if accidentally punctured. If your battery looks puffy or swollen, take extra precautions.

Do not reuse the battery if it is swollen or was deformed in any way during the procedure. The battery is likely damaged and can be very dangerous to reuse—it should be replaced.

This guide involves removing the speakers and battery. You will need new adhesive to reinstall the speakers and battery.

  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 pair of tweezers to lift up the black adhesive pull tab at the bottom of the right speaker, enough so you can grab it with your fingers. Grab the adhesive strip pull tab and slowly and carefully pull the adhesive strip out from under the speaker. Keep the angle of the adhesive strip as parallel to the laptop as you can. Try to avoid dragging it across the inside of the case.
    • Use a pair of tweezers to lift up the black adhesive pull tab at the bottom of the right speaker, enough so you can grab it with your fingers.

    • Grab the adhesive strip pull tab and slowly and carefully pull the adhesive strip out from under the speaker.

    • Keep the angle of the adhesive strip as parallel to the laptop as you can. Try to avoid dragging it across the inside of the case.

    • If the adhesive strip breaks, leave it in and proceed to the next step.

  6. Slide the tip of a spudger underneath the right speaker cable and pry straight up to disconnect the speaker. Slide the tip of a spudger underneath the right speaker cable and pry straight up to disconnect the speaker.
    • Slide the tip of a spudger underneath the right speaker cable and pry straight up to disconnect the speaker.

  7. Use tweezers to lift the adhesive pull tab at the top of the right speaker enough that you can grab it with your fingers. Grab the adhesive strip pull tab and slowly and carefully pull the adhesive strip out from under the speaker. Keep the angle of the adhesive strip as parallel to the laptop as you can. Try to avoid dragging it across the inside of the case.
    • Use tweezers to lift the adhesive pull tab at the top of the right speaker enough that you can grab it with your fingers.

    • Grab the adhesive strip pull tab and slowly and carefully pull the adhesive strip out from under the speaker.

    • Keep the angle of the adhesive strip as parallel to the laptop as you can. Try to avoid dragging it across the inside of the case.

    • If the adhesive strip breaks, or if the first adhesive strip broke, use a heated iOpener or heat gun to help remove the adhesive:

    • Apply heat to the speaker to soften the adhesive underneath.

    • Carefully slide a spudger or opening pick underneath the speaker to separate the adhesive.

  8. Lift the right speaker straight up from the bottom and remove it.
    • Lift the right speaker straight up from the bottom and remove it.

  9. Use a pair of tweezers to lift up the black adhesive pull tab at the bottom of the left speaker, enough so you can grab it with your fingers. Grab the adhesive strip pull tab and slowly and carefully pull the adhesive strip out from under the speaker. Keep the angle of the adhesive strip as parallel to the laptop as you can. Try to avoid dragging it across the inside of the case.
    • Use a pair of tweezers to lift up the black adhesive pull tab at the bottom of the left speaker, enough so you can grab it with your fingers.

    • Grab the adhesive strip pull tab and slowly and carefully pull the adhesive strip out from under the speaker.

    • Keep the angle of the adhesive strip as parallel to the laptop as you can. Try to avoid dragging it across the inside of the case.

    • If the adhesive strip breaks, leave it in and proceed to the next step.

  10. Slide the tip of a spudger underneath the left 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 left 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.

  11. Use tweezers to lift the adhesive pull tab at the top of the left speaker enough that you can grab it with your fingers. Grab the adhesive strip pull tab and slowly and carefully pull the adhesive strip out from under the speaker. Keep the angle of the adhesive strip as parallel to the laptop as you can. Try to avoid dragging it across the inside of the case.
    • Use tweezers to lift the adhesive pull tab at the top of the left speaker enough that you can grab it with your fingers.

    • Grab the adhesive strip pull tab and slowly and carefully pull the adhesive strip out from under the speaker.

    • Keep the angle of the adhesive strip as parallel to the laptop as you can. Try to avoid dragging it across the inside of the case.

    • If the adhesive strip breaks, or if the first adhesive strip broke, use a heated iOpener or heat gun to help remove the adhesive:

    • Apply heat to the speaker to soften the adhesive underneath.

    • Carefully slide a spudger or opening pick underneath the speaker to separate the adhesive.

  12. Lift the left speaker straight up from the bottom and remove it.
    • Lift the left speaker straight up from the bottom and remove it.

  13. 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.

  14. 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
  15. 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.

  16. 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.

  17. 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.

  18. 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.

  19. 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.

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

  21. 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.

  22. 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.

  23. 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.

  24. 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.

  25. 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.

  26. 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

  27. Remove the logic board.
    • Remove the logic board.

  28. Use a T3 Torx driver to remove four 2.5 mm screws securing the battery.
    • Use a T3 Torx driver to remove four 2.5 mm screws securing the battery.

  29. Use a pair of tweezers to lift up the black adhesive pull tab on the side of the battery, enough so you can grab it with your fingers. Grab the adhesive strip pull tab and slowly and carefully pull the adhesive strip out from under the battery. Keep the angle of the adhesive strip as parallel to the laptop as you can. Try to avoid dragging it across the inside of the case.
    • Use a pair of tweezers to lift up the black adhesive pull tab on the side of the battery, enough so you can grab it with your fingers.

    • Grab the adhesive strip pull tab and slowly and carefully pull the adhesive strip out from under the battery.

    • Keep the angle of the adhesive strip as parallel to the laptop as you can. Try to avoid dragging it across the inside of the case.

    • If the adhesive strip breaks, leave it in and proceed to the next step.

  30. Repeat the previous step to remove the next two adhesive strips on the same side of the battery. If any adhesive strips break, leave them in and proceed to the next step.
    • Repeat the previous step to remove the next two adhesive strips on the same side of the battery.

    • If any adhesive strips break, leave them in and proceed to the next step.

  31. Repeat the previous two steps to remove the three adhesive strips on the other side of the battery. If any of the adhesive strips broke, you can use high-concentration (>90%) isopropyl alcohol to help remove them: Carefully drip isopropyl alcohol along either edge of the battery, in the recessed part of the upper case, where the adhesive pull tabs were.
    • Repeat the previous two steps to remove the three adhesive strips on the other side of the battery.

    • If any of the adhesive strips broke, you can use high-concentration (>90%) isopropyl alcohol to help remove them:

    • Carefully drip isopropyl alcohol along either edge of the battery, in the recessed part of the upper case, where the adhesive pull tabs were.

    • Applying too much alcohol or applying it outside of the wells in the case where the adhesive sits risks damaging other components.

    • Let the alcohol soak into the adhesive for a minute or two.

    • Use opening picks to gently pry the battery away from the upper case.

  32. Remove the battery.
    • Remove the battery.

    • Calibrate your newly installed battery: charge it to 100%, and keep charging it for at least 2 more hours. Unplug and use it normally to drain the battery. When you see the low battery warning, save your work, and keep your laptop on until it goes to sleep due to low battery. Wait at least 5 hours, then charge your laptop uninterrupted to 100%.

    • If you notice any unusual behavior or problems after installing your new battery, you may need to reset your MacBook's SMC.

  33. Slide an opening pick under the microphone farthest away from the edge of the case to slice through the adhesive securing it to the upper case. The microphone assembly is still connected to the case. Do not try to remove the microphone assembly or lift the cable.
    • Slide an opening pick under the microphone farthest away from the edge of the case to slice through the adhesive securing it to the upper case.

    • The microphone assembly is still connected to the case. Do not try to remove the microphone assembly or lift the cable.

    • If the adhesive is stubborn, do not force the pick. Heat the microphone assembly using an iOpener or a hair dryer to soften the adhesive.

  34. Use the point of a spudger to lift the small locking flap on the microphone's ZIF connector. Slide the microphone cable straight out of the ZIF connector. Slide the microphone cable straight out of the ZIF connector.
    • Use the point of a spudger to lift the small locking flap on the microphone's ZIF connector.

    • Slide the microphone cable straight out of the ZIF connector.

  35. Slide an opening pick under the rest of the microphone assembly cable to separate it from the adhesive securing it to the upper case. Slide an opening pick under the rest of the microphone assembly cable to separate it from the adhesive securing it to the upper case.
    • Slide an opening pick under the rest of the microphone assembly cable to separate it from the adhesive securing it to the upper case.

  36. Use the point of a spudger to carefully pry one of the microphones out of its recess in the upper case. If the adhesive is stubborn, it may be necessary to apply heat to the microphone or the case.
    • Use the point of a spudger to carefully pry one of the microphones out of its recess in the upper case.

    • If the adhesive is stubborn, it may be necessary to apply heat to the microphone or the case.

  37. Use the point of a spudger to carefully pry the other microphone out of its recess in the upper case. If the adhesive is stubborn, it may be necessary to apply heat to the microphone or the case.
    • Use the point of a spudger to carefully pry the other microphone out of its recess in the upper case.

    • If the adhesive is stubborn, it may be necessary to apply heat to the microphone or the case.

  38. Remove the microphone assembly.
    • Remove the microphone assembly.

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.

Adam O'Camb

于2015年04月11日注册

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