Phone · LG · V20 Mini
LG V20 Mini Microphone Repair
Microphone Repair guide for the LG V20 Mini
Before you begin
Tools
- Phillips #000 screwdriver
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Tweezers
- Spudger tool
- SIM eject tool
Parts / materials
- Replacement microphone board
- Pre-cut back cover adhesive tape
- Isopropyl alcohol (90%+)
Safety
- Disconnect the battery before handling internal electronics to avoid short circuits.
- Wear protective eyewear when heating and separating glass panels.
- Avoid using sharp metal tools directly against the lithium-ion battery.
Overview
Step-by-step
- 1
Power Off the Phone
1 minPress and hold the power button, then tap Power Off to safely shut down the device before starting.
- 2
Eject the SIM Tray
1 minInsert a SIM eject tool into the hole next to the SIM tray and push firmly to pop out the tray.
- 3
Heat the Back Panel
2 minUse a heat gun or hair dryer around the edges of the rear cover for two minutes to soften the perimeter adhesive.
- 4
Attach the Suction Cup
1 minPress a suction cup firmly onto the lower section of the back cover and pull upward to create a slim gap.
- 5
Slice the Perimeter Adhesive
4 minInsert a plastic pick into the gap and carefully slide it around all four edges to slice through the adhesive seal.
- 6
Remove the Rear Glass Panel
1 minLift the rear panel away from the phone body and place it aside.
- 7
Unscrew the Midframe
3 minUse a Phillips #000 screwdriver to remove the screws securing the midframe and loudspeaker assembly.
- 8
Pry Away the Midframe
2 minInsert a spudger under the plastic midframe edge and gently unsnap it from the chassis clips.
- 9
Disconnect the Battery
1 minUse the flat end of a plastic spudger to pry the battery connector straight up from the motherboard.
- 10
Disconnect the Lower Sub-Board Ribbon
1 minGently pry up the ribbon flex cable connector linked to the bottom microphone daughterboard.
- 11
Unseat the Microphone Assembly
2 minUse tweezers to carefully lift the bottom microphone flex board out of its recessed housing in the frame.
- 12
Install the Replacement Microphone Board
2 minPosition the new microphone board into the chassis cavity and press gently until it rests flat.
- 13
Reconnect the Ribbon Cable
1 minAlign the interconnect ribbon connector over the sub-board header and press down firmly until it snaps into place.
After your LG V20 Mini microphone repair
Power the V20 Mini 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 LG V20 Mini job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more LG V20 Mini repair context in the encyclopedia, or open related DIY guides.
