Phone · Samsung · Galaxy Z Flip 4 5G
Samsung Galaxy Z Flip 4 5G Microphone Repair
Microphone Repair guide for the Samsung Galaxy Z Flip 4 5G
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Precision screwdriver set (Phillips #000)
- Spudger tool
- Tweezers
- Anti-static wrist strap
Parts / materials
- Replacement sub-board with primary microphone for Galaxy Z Flip 4 5G
- Pre-cut lower rear glass adhesive strip
- Isopropyl alcohol (99%)
Safety
- Wear eye protection when heating glass panels to protect against accidental shattering.
- Ensure the device is powered off prior to disconnecting internal components.
- Do not puncture or apply direct force to the internal battery.
Overview
Step-by-step
- 1
Power off device
1 minPress and hold the Power and Volume Down buttons, then tap Power Off on the screen. Ensure the device is fully shut down before proceeding.
- 2
Heat the lower back glass
3 minApply a heat gun or hair dryer on low setting to the lower rear glass panel for two minutes to soften the perimeter adhesive.
- 3
Attach suction cup
2 minPlace a suction cup on the lower glass near the bottom edge and pull upward gently to create a slight gap.
- 4
Slice rear glass adhesive
4 minInsert a thin plastic opening pick into the seam gap. Carefully slide it around the perimeter of the lower glass panel to cut through the adhesive.
- 5
Remove lower back glass
1 minLift the lower rear glass panel off the chassis and set it aside on a clean surface.
- 6
Unscrew lower midframe
3 minUse a Phillips #000 screwdriver to remove the eight screws securing the lower midframe and loudspeaker assembly.
- 7
Remove lower speaker bezel
2 minInsert a spudger under the top edge of the lower midframe bezel and gently pry it up to lift it off the frame.
- 8
Disconnect main interconnect cable
2 minUse the flat end of a spudger to pop off the main interconnect flex cable connector from the lower sub-board.
- 9
Disconnect antenna coaxial cables
3 minUse fine tweezers to gently disconnect the white and black antenna coaxial cable connectors from the sub-board.
- 10
Remove sub-board retaining screw
1 minRemove the single Phillips #000 screw holding the sub-board to the lower housing frame.
- 11
Pry out original sub-board
2 minInsert a plastic spudger beneath the sub-board edge near the bottom and gently pry up to free it from the frame.
- 12
Insert replacement sub-board
2 minPosition the new sub-board into the lower housing, aligning the primary microphone port with the bottom frame opening.
- 13
Fasten sub-board screw
1 minReinstall the single Phillips #000 screw to secure the new sub-board in place.
- 14
Reconnect flex and antenna cables
3 minSnap the main interconnect flex connector back into place and reconnect the coaxial antenna cables using tweezers.
- 15
Reattach lower speaker bezel
3 minLower the midframe speaker assembly back into position and secure it using the eight Phillips #000 screws.
- 16
Apply fresh glass adhesive
4 minClean remaining old adhesive with isopropyl alcohol, then apply new pre-cut adhesive strips along the lower rear frame edges.
- 17
Seal the lower back glass
2 minAlign the lower glass panel with the phone frame and press down firmly around all edges to re-seal the device.
After your Samsung Galaxy Z Flip 4 5G microphone repair
Power the Galaxy Z Flip 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 Flip 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 Flip 4 5G microphone repair at LML Repair in Seattle — same-day options available.
