iPhone 18 Pro Max Main Microphone (pSIM)

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)

  • Crosshead 44 mm half-moon bit

  • ESD-safe tweezers

  • Ethanol wipes or isopropyl alcohol (IPA) wipes

  • Nylon probe (black stick)

  • Super screw 44 mm half-moon bit

  • Torque driver (gray, 0.55 kgf cm)

  • Torque driver (blue, 0.65 kgf cm)

  • Torque driver (orange, 0.85 kgf cm)

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

Removal

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

  1. Use a torque driver and the crosshead bit to remove 10 crosshead screws, 3 from the SIM assembly, 5 from the bottom speaker, and 2 from the Taptic Engine. Then complete the entire step before continuing to the next step.

    • Note: The screw closest to the USB-C connector is located on the sidewall of the enclosure.

    • Tilt the SIM assembly to access the flex cable underneath.

    •  Caution: Don’t damage the USB-C connector flex cables when lifting the SIM assembly.

    • Lift the end of the SIM assembly flex cable off the connector. Then lift the SIM assembly out of the enclosure.

    • Lift the bottom speaker out of the enclosure.

      • Caution: Don’t damage the grounding springs on the bottom speaker.

  2. Move the Taptic Engine slightly to the side. Tilt the USB-C flex cable 90 degrees to the left to access the super screw underneath. Then use a torque driver and super screw bit to remove one super screw from the main microphone. Then complete the entire step before continuing to the next step.

    • Gently tilt the Taptic Engine to access the flex cable underneath.

    • Lift the end of the Taptic Engine flex cable off the connector. Then lift the Taptic Engine out of the enclosure.

  3. Use a torque driver and the crosshead bit to remove one crosshead screw from the main microphone. Then complete the entire step before continuing to the next step.

    • Lift the end of the main microphone flex cable off the connector.

    • Separate the adhesive between the main microphone and enclosure as shown. Then lift the main microphone out of the enclosure.

      • Caution: The main microphone gasket uses a strong adhesive. When separating the main microphone from the enclosure, don’t press or pull on the cowlings on either side of the main microphone.

Reassembly

Screw location diagram

  1. Use ESD-safe tweezers to remove the gasket and all adhesive from the enclosure. Clean the area with an ethanol wipe or IPA wipe.

    • Caution: Ensure that all residual adhesive is removed and the surface is clean and dry before installing the replacement main microphone.

  2. Peel the adhesive liner from the replacement main microphone.

  3. Position the main microphone in the enclosure. Then press and hold the main microphone against the sidewall of the enclosure for 20 seconds to ensure that it adheres properly.

    • Important: Ensure that the main microphone gasket is fully seated and the screw holes are aligned before continuing to the next step.

  4. Press the end of the main microphone flex cable to the connector.

  5. Use the orange torque driver and super screw bit to install one new super screw (923-15923) (J4) into the main microphone.

  6. Use the blue torque driver and crosshead bit to install one new crosshead screw (923-15937) (J5) into the main microphone.

  7. Gently fold down the USB-C connector flex cable. Use the blue torque driver and crosshead bit to install one new crosshead screw (923-15933) (K2) into the main microphone.

  8. Use the gray torque driver and crosshead bit to install two new crosshead screws (K1, J6) into the main microphone.

    • 923-15927 (J6)

    • 923-15925 (K1)

Reinstall the following parts to complete reassembly:

Published Date: