Phone · Apple · iPhone 12
Apple iPhone 12 Microphone Repair
Microphone Repair guide for the Apple iPhone 12
Before you begin
Tools
- P2 Pentalobe screwdriver
- Tri-point Y000 screwdriver
- Phillips #000 screwdriver
- Suction cup tool
- Plastic prying tools
- Spudger tool
- Heat gun or hair dryer
- Tweezers
Parts / materials
- Replacement iPhone 12 lower microphone flex cable assembly
- Display adhesive frame gasket
- Isopropyl alcohol (99%)
Safety
- Disconnect the battery press connector before removing any internal components to prevent electrical shorts.
- Wear eye protection when heating and prying glass screens.
- Do not puncture, bend, or crush the lithium-ion battery with sharp metal tools.
Overview
Step-by-step
- 1
Power off the iPhone
1 minPress and hold the side button and volume down button simultaneously, then slide the screen toggle to power off the device completely.
- 2
Remove lower pentalobe screws
2 minUse a P2 pentalobe screwdriver to remove the two 3.5 mm screws located on the bottom edge beside the Lightning port.
- 3
Heat the display edges
2 minApply a heat gun or hair dryer around the outer perimeter of the display for two minutes to soften the waterproof adhesive.
- 4
Attach suction cup tool
1 minPlace a suction cup onto the lower portion of the screen, right above the Lightning port area, and press down securely.
- 5
Slice the display adhesive
4 minPull up on the suction cup to create a slight gap, then slide a thin plastic prying tool around the edges to cut the adhesive gasket.
- 6
Open the display assembly
1 minGently lift the right side of the screen up and open the iPhone toward the left side like opening a book cover.
- 7
Remove the connector bracket
3 minUse a Tri-point Y000 screwdriver to remove the four screws securing the lower logic board cover bracket, then lift the bracket away.
- 8
Disconnect the battery
1 minUse the pointed tip of a spudger to gently pry the battery connector straight up from its socket on the logic board.
- 9
Disconnect display flex cables
2 minPry up the display connector and the ambient light sensor assembly connector using the flat end of a spudger tool.
- 10
Remove the loudspeaker
3 minUnscrew the five screws securing the lower speaker assembly and lift the speaker module out of the lower chassis.
- 11
Remove the Taptic Engine
3 minRemove the three standoff screws anchoring the Taptic Engine and lift the vibrator unit out using tweezers.
- 12
Detach the microphone and port assembly
4 minRemove the retaining screws holding the lower microphone and Lightning connector flex cable to the inside bottom frame.
- 13
Pry up the microphone flex cable
3 minApply mild heat to the rear bottom case, then use a spudger to carefully unstick the lower microphone flex cable from the aluminum enclosure.
- 14
Install the new microphone assembly
3 minAlign the replacement lower microphone and port assembly into the housing and press it down to adhere it securely into place.
After your Apple iPhone 12 microphone repair
Power the iPhone 12 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 12 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 12 repair context in the encyclopedia, or open related DIY guides.
