Phone · Apple · iPhone 4S
Apple iPhone 4S Microphone Repair
Microphone Repair guide for the Apple iPhone 4S
Before you begin
Tools
- Precision screwdriver set (Phillips #000)
- P2 Pentalobe screwdriver
- Spudger tool
- Plastic prying tools
- Tweezers
Parts / materials
- iPhone 4S dock connector and microphone assembly
- Adhesive strips
Safety
- Always turn off the phone and disconnect the battery before handling internal components to avoid electrical shorts.
- Handle lithium-ion batteries carefully to prevent punctures or bending.
Overview
Step-by-step
- 1
Power Off the iPhone
1 minPress and hold the top power button until the slider appears, then slide to turn off the iPhone completely.
- 2
Remove the Lower Screws
2 minUse a P2 Pentalobe or Phillips #000 screwdriver to remove the two 3.6 mm screws located at the bottom edge of the phone.
- 3
Slide Off the Rear Panel
1 minPush the rear glass panel upward toward the top edge of the phone to unlatch it, then lift it away.
- 4
Unscrew the Battery Connector Bracket
2 minRemove the two Phillips #000 screws securing the battery connector bracket to the logic board.
- 5
Disconnect the Battery Connector
2 minUse a plastic spudger to gently pry the battery connector straight up from its socket on the logic board.
- 6
Remove the Battery
3 minPull the clear plastic tab upward to release the battery from the adhesive securing it to the frame.
- 7
Unscrew the Cable Shield
2 minRemove the two Phillips #000 screws holding the metal dock connector cable cover near the bottom of the logic board.
- 8
Remove the Cable Shield
1 minUse tweezers to carefully lift the metal cover off the dock cable connection point.
- 9
Disconnect the Dock Connector Flex Cable
2 minPry the dock connector flex cable press connector straight up off the logic board using a spudger.
- 10
Unscrew the Speaker Enclosure
2 minRemove the two Phillips #000 screws securing the lower speaker enclosure to the aluminum casing.
- 11
Remove the Speaker Enclosure
2 minLift the speaker assembly out of the bottom cavity of the device.
- 12
Free the Primary Microphone
3 minUse a spudger to pry the small rubber microphone boot and microphone head from its recess in the lower rim.
- 13
Remove the Dock Connector Assembly
3 minGently peel the flexible dock cable and attached lower microphone away from the rear enclosure.
- 14
Install the New Microphone Assembly
4 minPress the new microphone and dock connector flex cable firmly into place along the lower edge of the case.
After your Apple iPhone 4S microphone repair
Power the iPhone 4S back on and test the microphone repair function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Apple iPhone 4S job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Apple iPhone 4S repair context in the encyclopedia, or open related DIY guides.

