Phone · Samsung · Galaxy Z Fold 3 5G
Samsung Galaxy Z Fold 3 5G Microphone Repair
Microphone Repair guide for the Samsung Galaxy Z Fold 3 5G
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Phillips #000 screwdriver
- Tweezers
- Spudger tool
Parts / materials
- Replacement sub-board with microphone
- Pre-cut rear cover adhesive strips
- Isopropyl alcohol wipes
Safety
- Wear protective safety glasses when heating glass panels.
- Disconnect battery cables before touching internal electronics.
- Do not bend or puncture the internal lithium-ion batteries.
Overview
Step-by-step
- 1
Turn Off Galaxy Z Fold 3
1 minPress and hold the side button and volume down button simultaneously to power down the device completely.
- 2
Heat Edge of Back Glass
2 minApply a heat gun around the outer edges of the rear glass panel for two minutes to soften the adhesive.
- 3
Attach Suction Cup to Glass
2 minPlace a suction cup near the bottom edge of the back glass and pull upward gently to create a small gap.
- 4
Slice Rear Panel Adhesive
3 minInsert a plastic opening pick into the gap and slice along all four edges to loosen the adhesive.
- 5
Lift Off Back Cover
2 minCarefully lift the rear glass panel away from the frame and set it aside on a clean surface.
- 6
Unbolt Wireless Assembly Screws
3 minRemove the Phillips #000 screws securing the midframe protective plate and wireless charging coil.
- 7
Detach Wireless Charging Assembly
2 minUse a spudger to pry up the top edge of the wireless charging pad and peel it off the chassis.
- 8
Disconnect Battery Flex Connectors
2 minPry up both battery ribbon connectors from the main motherboard using a plastic spudger.
- 9
Unscrew Lower Loudspeaker Unit
2 minRemove the Phillips #000 screws holding the bottom loudspeaker enclosure in place.
- 10
Remove Loudspeaker Module
2 minInsert a plastic pry tool under the lower speaker module and lift it out of the chassis.
- 11
Disconnect Sub-Board Flex Cables
2 minPop open the main interconnect flex cables attached to the lower sub-board using your spudger.
- 12
Pry Up Microphone Sub-Board
3 minRemove the single sub-board holding screw and gently lever out the board containing the primary microphone.
- 13
Position New Microphone Board
2 minSet the replacement sub-board flat into the frame housing and secure it with its retaining screw.
- 14
Reconnect Sub-Board Flex Cables
2 minAlign and press down on the main interconnect ribbon connectors until they snap into place.
- 15
Reinstall Loudspeaker Assembly
2 minPlace the loudspeaker housing back over the daughterboard and tighten the securing Phillips screws.
- 16
Reconnect Battery Connectors
1 minPress both battery flex cables back onto their respective sockets on the motherboard.
- 17
Reattach Wireless Charging Midframe
3 minRealign the wireless charging coil midframe and secure all remaining Phillips #000 frame screws.
- 18
Seal Rear Glass Panel
3 minApply new custom cut adhesive strips along the inner frame lip, then firmly press the back glass down.
After your Samsung Galaxy Z Fold 3 5G microphone repair
Power the Galaxy Z Fold 3 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 3 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 3 5G microphone repair at LML Repair in Seattle — same-day options available.
