Phone · Samsung · Galaxy S23 Ultra
Samsung Galaxy S23 Ultra Microphone Repair
Microphone Repair guide for the Samsung Galaxy S23 Ultra
Before you begin
Tools
- SIM eject tool
- Heat gun
- Suction handle
- Opening picks
- Phillips #00 screwdriver
- Spudger
- Tweezers
Parts / materials
- Replacement Samsung Galaxy S23 Ultra sub-board with microphone
- Pre-cut rear glass adhesive sticker
- 99% isopropyl alcohol
Safety
- Wear safety glasses to protect eyes against heating glass or glass fragments.
- Keep the battery disconnected throughout the entire component replacement.
- Do not heat the center of the phone directly to avoid overheating the lithium battery.
Overview
Step-by-step
- 1
Eject the SIM Card Tray
1 minInsert a SIM eject tool into the hole at the bottom frame edge to release the SIM tray. Pull the tray completely out of the phone.
- 2
Heat the Back Glass
3 minApply a heat gun or iOpener around the rear glass edges for two minutes to soften the adhesive underneath. Keep the heat source moving to avoid thermal damage.
- 3
Slice the Glass Adhesive
4 minAttach a suction handle near the bottom edge and pull up firmly to create a gap. Insert an opening pick into the gap and slide it along the perimeter to slice the adhesive seal.
- 4
Lift Off the Rear Glass
2 minGently hinge the rear glass upward from the frame once all edges are freed. Lift the back cover off completely and place it on a clean surface.
- 5
Unscrew the Upper Shield and Wireless Coil
2 minUse a Phillips #00 screwdriver to remove the six screws securing the upper motherboard shield and wireless charging assembly. Keep the screws grouped together.
- 6
Disconnect and Remove Wireless Coil
2 minUse a spudger to detach the wireless charging coil press connector from the motherboard. Peel the wireless coil up from the battery and remove it.
- 7
Disconnect the Battery Flex Cable
1 minPry the battery press connector straight up from the motherboard socket using a spudger. This cuts power to the device to prevent short circuits.
- 8
Unscrew the Lower Loudspeaker
2 minRemove the six Phillips #00 screws holding down the lower loudspeaker assembly over the sub-board. Place the screws safely aside.
- 9
Remove the Loudspeaker Assembly
1 minInsert the flat end of a spudger underneath the loudspeaker module. Carefully lever the housing up to detach it from the phone frame.
- 10
Disconnect Sub-Board Flex Cables
2 minUse a spudger to snap off the main interconnect flex and display flex connectors from the bottom sub-board. Disconnect any antenna coaxial cables using tweezers.
- 11
Remove the Defective Sub-Board
2 minInsert a plastic spudger beneath the sub-board containing the primary microphone and charging port. Pry the board straight up from its frame recess.
- 12
Position the Replacement Sub-Board
2 minPlace the new microphone sub-board into the bottom chassis recess. Press down gently around the edges until it sits completely flush.
- 13
Reconnect Sub-Board Cables
2 minSnap the main interconnect and display flex cables onto the new sub-board sockets. Carefully reattach the coaxial antenna cables with tweezers until they snap into place.
- 14
Reinstall the Loudspeaker Assembly
2 minSet the loudspeaker module back over the sub-board assembly. Secure it by reinstalling the six Phillips #00 screws.
- 15
Reconnect Battery and Wireless Coil
2 minReconnect the main battery flex cable to the motherboard. Reinstall the wireless coil assembly, reconnect its plug, and tighten the six upper screws.
- 16
Reseal the Rear Glass
3 minApply a new pre-cut adhesive gasket to the outer frame perimeter. Press the rear glass back into position and apply light pressure to seal the repair.
After your Samsung Galaxy S23 Ultra microphone repair
Power the Galaxy S23 Ultra 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 Samsung Galaxy S23 Ultra job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Samsung Galaxy S23 Ultra repair context in the encyclopedia, or open related DIY guides.

