MacBook Air (13-inch, M4, 2025) Audio Board

Before You Begin

Warning

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

Remove the following parts before you begin:

Tools

  • Adjustable torque driver (10–34 Ncm)

  • ESD-safe tweezers

  • Nylon probe (black stick)

  • Torque driver (blue, 0.65 kgf cm)

  • Torx 3IP 44 mm half-moon bit

  • Torx 5IP 50 mm bit

Refer to a full list of tools required for all repairs.

Note: This procedure may show images of different models, but the steps are the same. Ensure that you use the correct tools for the model you’re repairing.

Removal

Note: If you’ve already completed the removal steps, skip to reassembly.

  1. Use the blue torque driver and 3IP bit to remove the two 3IP screws (923-12557) from the audio board connector cowling. Remove the cowling and save it for reassembly.

  2. Lift the end of the lid angle sensor flex cable off the connector (1). Then gently peel the lid angle sensor flex cable off the audio board (2).

    • Note: Use the black stick to release the adhesive between the lid angle sensor flex cable and the audio board if necessary.

  3. Lift the end of the audio board flex cable off the connector (1).

  4. Use the 10–34 Ncm adjustable torque driver and 5IP bit to remove the two 5IP screws (923-12552) from the audio board (2).

  5. Use the black stick to tilt up the end of the audio board. Then remove the audio board from the top case.

Reassembly

  1. Position the audio board in the top case.

    • Caution: Ensure that the lid angle sensor flex cable isn’t trapped under the audio board.

  2. Set the torque value on the 10–34 Ncm adjustable torque driver to 16 Ncm. While gently pressing the audio board to the top case (1), use the adjustable torque driver and 5IP bit to reinstall the two 5IP screws (923-12552) into the audio board (2).

    • Important: Ensure that the audio jack doesn't protrude past the surface of the enclosure.

  3. Press the end of the audio board flex cable to the connector.

  4. Press the end of the lid angle sensor flex cable to the connector (1).

  5. Press the lid angle sensor flex cable to adhere it to the audio board (2).

  6. Position the audio board connector cowling over the ends of the lid angle sensor and audio board flex cables.

  7. Use the blue torque driver and 3IP bit to reinstall the two 3IP screws (923-12557) into the audio board connector cowling.

Reinstall the following parts to complete reassembly:

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