Phone · Samsung · Galaxy S20 Plus
Samsung Galaxy S20 Plus Microphone Repair
Microphone Repair guide for the Samsung Galaxy S20 Plus
Before you begin
Tools
- Precision screwdriver set
- Plastic opening tools
- Anti-static wrist strap
- Tweezers
- Suction handle
- Heat gun or thermal pad
Parts / materials
- Replacement microphone daughterboard
- Rear glass adhesive precut strip
- Isopropyl alcohol (91% or higher)
Safety
- Wear protective eyewear to guard against potential glass slivers if the rear panel breaks.
- Always disconnect the battery before touching internal circuit boards to prevent electrical shorts.
- Do not heat the rear glass beyond 80°C (176°F) to avoid damaging the internal battery.
Overview
Step-by-step
- 1
Power Off and Remove SIM Tray
2 minTurn off your Galaxy S20 Plus completely. Insert a SIM eject tool into the hole at the top edge to pop out the SIM card tray.
- 2
Heat Rear Glass Edges
3 minApply a heat gun or thermal pad to the edges of the back cover for two minutes to soften the adhesive.
- 3
Attach Suction Cup
2 minPress a suction cup onto the lower portion of the rear glass and gently pull up to create a small gap.
- 4
Slice Rear Cover Adhesive
4 minInsert a plastic opening pick into the gap and slice along all four edges to separate the adhesive.
- 5
Remove Rear Glass
2 minCarefully lift the rear glass panel off the chassis and set it aside on a clean cloth.
- 6
Unscrew Upper Housing Shield
3 minRemove the Phillips #00 screws securing the upper wireless charging coil and motherboard bracket.
- 7
Remove Wireless Charging Coil
2 minUnclip the wireless charging pad connector from the motherboard and lift the assembly out.
- 8
Unscrew Speaker Assembly
3 minRemove the Phillips #00 screws holding the lower loudspeaker housing over the daughterboard.
- 9
Remove Loudspeaker Module
2 minInsert a plastic spudger under the edge of the loudspeaker and lift it straight out of the frame.
- 10
Disconnect Battery Cable
1 minPry the battery press connector straight up from the motherboard to cut power to the device.
- 11
Disconnect Interconnect Cables
2 minDetach the display cable and main interconnect flex cables from the lower microphone daughterboard.
- 12
Unscrew Daughterboard Securement
2 minRemove the single Phillips screw securing the microphone daughterboard to the bottom chassis.
- 13
Remove Faulty Microphone Board
3 minPry up the old daughterboard assembly using a plastic spudger and lift it clear of the frame.
- 14
Install New Microphone Board
3 minSet the replacement microphone daughterboard into position, ensuring the USB-C port and primary mic align correctly.
- 15
Secure Daughterboard Screw
2 minReinstall and tighten the single Phillips screw to fasten the microphone daughterboard.
- 16
Reconnect Board Flex Cables
2 minPress the display and interconnect flex ribbon connectors firmly onto the new daughterboard.
- 17
Reconnect Battery Press Connector
1 minSnap the battery flex cable back into its socket on the mainboard.
- 18
Reattach Loudspeaker Module
3 minPlace the loudspeaker assembly back into the lower frame and tighten the Phillips screws.
- 19
Reinstall Wireless Charging Shield
3 minPosition the wireless charging coil back over the motherboard and secure all remaining screws.
- 20
Reseal Rear Glass Cover
4 minApply custom precut adhesive tape to the perimeter, press the rear cover into place, and hold pressure for 30 seconds.
After your Samsung Galaxy S20 Plus microphone repair
Power the Galaxy S20 Plus 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 S20 Plus 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 S20 Plus repair context in the encyclopedia, or open related DIY guides.
