Phone · Samsung · Galaxy Z Fold 4 5G
Samsung Galaxy Z Fold 4 5G Microphone Repair
Microphone Repair guide for the Samsung Galaxy Z Fold 4 5G
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Precision screwdriver set (Phillips #000, #00)
- Tweezers
- Spudger tool
Parts / materials
- Replacement Galaxy Z Fold 4 microphone sub-board
- Pre-cut back cover adhesive
- Isopropyl alcohol (99%)
Safety
- Disconnect the battery before touching internal components to prevent short circuits.
- Do not bend or puncture internal lithium-ion batteries.
- Wear safety eye protection when handling glass components.
- Keep heat gun temperatures moderate to avoid damaging the internal foldable screen.
Overview
Step-by-step
- 1
Power Down Device
1 minPress and hold the side button and volume down button simultaneously, then select Power Off on the screen.
- 2
Heat Back Glass
3 minApply heat to the edges of the back glass cover using a heat gun set to low for 2 to 3 minutes to soften the adhesive.
- 3
Attach Suction Cup
1 minPlace a suction cup near the bottom edge of the back glass cover and pull up gently to create a small gap.
- 4
Slice Rear Adhesive
4 minInsert a plastic prying tool into the gap and slide it along the perimeter to slice through the back cover adhesive.
- 5
Remove Back Glass Panel
1 minLift the rear glass cover off the chassis and set it aside safely on a clean surface.
- 6
Unscrew Wireless Charging Plate
3 minUse a Phillips #00 screwdriver to remove the screws securing the mid-frame shield and wireless charging coil.
- 7
Remove Wireless Charging Module
2 minGently peel up the wireless charging coil assembly from the motherboard frame and remove it.
- 8
Disconnect Battery Cable
1 minUse the flat end of a plastic spudger to lift the battery flex cable directly up off the motherboard.
- 9
Unscrew Lower Speaker Housing
3 minRemove the Phillips #00 screws holding down the lower speaker housing covering the microphone sub-board.
- 10
Remove Speaker Enclosure
2 minInsert a spudger beneath the speaker housing edge and lift it out of the frame.
- 11
Disconnect Main Flex Cables
2 minPop off the main interconnect flex cable connectors attached to the microphone sub-board using a spudger.
- 12
Disconnect Antenna Coaxial Connectors
2 minUse precision tweezers to carefully lift the small antenna coaxial cables straight up off their sub-board sockets.
- 13
Unseat Sub-Board Screw
1 minRemove the single Phillips #00 retaining screw anchoring the microphone daughterboard to the lower frame.
- 14
Remove Microphone Sub-Board
2 minPry up gently beneath the edge of the sub-board to free it from the bottom frame assembly.
- 15
Position New Microphone Board
2 minPlace the replacement sub-board into the lower recess and secure it with the retaining screw.
- 16
Reconnect Antenna Cables
2 minAlign and press the antenna coaxial cables back onto the sub-board terminals until they snap into place.
- 17
Reconnect Interconnect Cables
2 minPress the main ribbon cable connectors down onto the new sub-board until you hear a clear click.
- 18
Reinstall Speaker Housing
3 minSet the lower speaker module over the sub-board and tighten all retaining Phillips screws.
- 19
Reconnect Battery
1 minPress the battery flex cable connector down onto its socket on the motherboard.
- 20
Seal Back Glass Panel
4 minApply new adhesive tape along the rear frame edges, align the glass cover, and press firmly to seal.
After your Samsung Galaxy Z Fold 4 5G microphone repair
Power the Galaxy Z Fold 4 5G 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 Z Fold 4 5G 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 Z Fold 4 5G microphone repair at LML Repair in Seattle — same-day options available.
