Phone · Motorola · G75 5G
Motorola G75 5G Microphone Repair
Microphone Repair guide for the Motorola G75 5G
Before you begin
Tools
- Precision screwdriver set
- Plastic opening tools
- Anti-static wrist strap
- Tweezers
- Heat gun or hairdryer
- Suction cup
- SIM eject tool
Parts / materials
- Replacement microphone daughterboard
- Pre-cut rear panel adhesive tape
- High-concentration isopropyl alcohol
- Microfiber cleaning cloth
Safety
- Wear protective eyewear when heating and separating glass panels.
- Do not puncture or bend the internal battery while working inside the device.
- Use an anti-static wrist strap to prevent electrostatic discharge damage to internal components.
Overview
Step-by-step
- 1
Power Off the Phone
1 minPress and hold the power button, then tap Power Off on the screen to completely shut down the device.
- 2
Eject the SIM Card Tray
1 minInsert a SIM eject tool into the hole on the side of the phone and press firmly to remove the SIM tray.
- 3
Heat the Back Panel
2 minApply a heat gun or hairdryer on low heat around the rear edges for two minutes to soften the waterproof adhesive.
- 4
Attach Suction Cup
1 minPlace a suction cup near the bottom edge of the back panel and pull gently upward to create a slight gap.
- 5
Insert Opening Pick
1 minSlide a plastic opening pick into the gap between the rear glass panel and the midframe.
- 6
Slice Perimeter Adhesive
3 minSlide the pick carefully around all four edges to cut through the back cover adhesive seal.
- 7
Remove the Rear Panel
1 minLift the rear panel off the phone body and set it aside on a clean surface.
- 8
Unscrew Speaker Assembly
2 minUse a Phillips #00 screwdriver to remove the screws securing the lower loudspeaker housing.
- 9
Remove Loudspeaker Module
1 minInsert a plastic pry tool under the loudspeaker cover and lift it clear of the bottom daughterboard.
- 10
Disconnect Main Flex Cable
1 minUse a plastic spudger to pop the main ribbon flex connector off the microphone daughterboard.
- 11
Disconnect Antenna Cables
1 minUse fine tweezers to gently unclip the coaxial antenna cable heads from the daughterboard board.
- 12
Pry Out Damaged Daughterboard
2 minLever the microphone daughterboard up from the bottom frame recess using a plastic opening tool.
- 13
Install New Microphone Daughterboard
2 minPosition the new daughterboard into the bottom frame slot and press down gently until it sits flat.
- 14
Reconnect Flex and Antenna Cables
2 minSnap the main interconnect flex connector and coaxial antenna cables firmly onto the new board.
- 15
Reinstall Loudspeaker Assembly
2 minPlace the loudspeaker cover back over the daughterboard and tighten all retaining screws.
- 16
Clean and Apply Rear Adhesive
3 minClean remaining adhesive off the frame using isopropyl alcohol, then apply new pre-cut back cover adhesive.
- 17
Reattach Rear Panel
2 minAlign the rear panel with the frame and press firmly along the perimeter to secure the seal.
After your Motorola G75 5G microphone repair
Power the G75 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 Motorola G75 5G job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Motorola G75 5G repair context in the encyclopedia, or open related DIY guides.
