Phone · Samsung · Galaxy Fold 4G
Samsung Galaxy Fold 4G Microphone Repair
Microphone Repair guide for the Samsung Galaxy Fold 4G
Before you begin
Tools
- Precision screwdriver set
- Plastic opening tools
- Anti-static wrist strap
- Tweezers
- Heat gun or iOpener
- Suction cup
- Opening picks
- SIM eject tool
Parts / materials
- Replacement Galaxy Fold 4G microphone sub-board
- Pre-cut rear glass replacement adhesive
- 90%+ Isopropyl alcohol
Safety
- Always disconnect the battery connector before removing or installing internal components.
- Wear eye protection when heating glass components to guard against potential cracking or debris.
- Do not heat the back glass past 80°C (176°F) to avoid damaging internal battery cells.
Overview
Step-by-step
- 1
Power Off Device
1 minPress and hold the Power button, then select Power Off on the screen to shut down the device completely.
- 2
Eject SIM Tray
1 minInsert a SIM eject tool into the pinhole next to the SIM tray and press firmly to pop it out.
- 3
Apply Heat to Rear Glass
3 minUse a heat gun or iOpener around the edges of the rear glass panel for two minutes to soften the adhesive.
- 4
Attach Suction Cup
2 minPlace a suction cup on the lower third of the rear glass cover and pull upward firmly to create a small gap.
- 5
Insert Opening Pick
2 minSlide a thin plastic opening pick into the gap created beneath the rear glass edge.
- 6
Slice Perimeter Adhesive
5 minCarefully slide the pick along all outer edges of the rear glass to slice through the adhesive tape.
- 7
Remove Rear Glass
2 minGently lift the back glass off the chassis and set it aside on a clean surface.
- 8
Unscrew Lower Midframe Screws
3 minUse a Phillips #00 screwdriver to remove the screws securing the lower plastic speaker midframe.
- 9
Remove Lower Midframe Cover
2 minPry up the lower midframe speaker cover with a plastic spudger and lift it clear of the device.
- 10
Disconnect Battery Cable
1 minPry the battery press-connector straight up from its motherboard socket using a plastic spudger to cut power.
- 11
Disconnect Microphone Sub-Board Flex
2 minUse a plastic opening tool to disconnect the interconnect flex cable attached to the microphone sub-board.
- 12
Remove Sub-Board Screws
2 minRemove the Phillips screws holding the primary microphone sub-board assembly to the lower frame.
- 13
Pry Up Microphone Sub-Board
2 minInsert tweezers or a pry tool under the edge of the microphone sub-board and lift it out.
- 14
Position New Microphone Sub-Board
2 minAlign the replacement microphone sub-board into the lower housing slot and press gently into place.
- 15
Secure Sub-Board Screws
2 minReinstall and tighten the Phillips screws to hold the replacement microphone sub-board firmly in position.
- 16
Reconnect Microphone Flex Cable
1 minAlign and press down on the flex cable connector until it snaps onto the sub-board header.
After your Samsung Galaxy Fold 4G microphone repair
Power the Galaxy Fold 4G 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 Fold 4G job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Prefer a professional repair?
Book Samsung Galaxy Fold 4G microphone repair at LML Repair in Seattle — same-day options available.
