iPhone 18 Pro 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
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 (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.
Use a torque driver and the crosshead bit to remove 13 crosshead screws, 3 from the SIM assembly, 5 from the bottom speaker, and 5 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 on the sidewall of the enclosure.
Remove the grounding spring from the Taptic Engine. Save the grounding spring for reassembly.
Important: Note the orientation of the grounding spring.
Tilt the SIM assembly to access the flex cable underneath.
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.
Gently fold back the USB-C connector flex cable 90 degrees to access the super screws underneath. Use a torque driver and the super screw bit to remove two super screws, one from the Taptic Engine and one 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.
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.
Break the adhesive between the main microphone and enclosure as shown. Then lift the main microphone out of the enclosure.
Caution: The main microphone adhesive 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
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.
Important: Ensure that there's no damage on the film near the connectors.
Peel the adhesive liner off the replacement main microphone.
Position the main microphone in the enclosure. 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 adhesive gasket is fully seated and the screw holes are aligned before continuing to the next step.
Press the end of the main microphone flex cable to the connector.
Use the orange torque driver and super screw bit to install one new super screw (923-15918) (K1) into the main microphone.
Use the blue torque driver and crosshead bit to install one new crosshead screw (923-15919) (K2) into the main microphone.
Reinstall the following parts to complete reassembly: