Phone · Motorola · Moto G31
Motorola Moto G31 Charging Port Repair
Charging Port Repair guide for the Motorola Moto G31
Before you begin
Tools
- Phillips #00 screwdriver
- Plastic opening picks
- Spudger
- Tweezers
- SIM card eject tool
- Suction cup
- Heat gun or iOpener
Parts / materials
- Replacement Moto G31 charging board
- Back cover adhesive strips
Safety
- Wear safety glasses to protect against small debris.
- Power off the device completely before handling internal electronics.
- Do not apply excessive heat to avoid damaging internal components or the battery.
Overview
Step-by-step
- 1
Power Off the Device
1 minPress and hold the power button, then select Power Off on the screen. Ensure the device is fully powered down before starting.
- 2
Eject the SIM Card Tray
1 minInsert a SIM eject tool into the small hole on the left edge of the phone. Push firmly to pop the SIM tray out and remove it completely.
- 3
Heat the Rear Cover
2 minApply a heat gun or heated pad to the edges of the plastic back cover for two minutes. This softens the underlying adhesive and plastic clips.
- 4
Insert an Opening Pick
2 minAttach a suction cup near the bottom edge of the back panel and pull up gently. Slide a plastic opening pick into the resulting seam.
- 5
Slice the Back Cover Adhesive
4 minSlide the opening pick around the entire perimeter of the phone frame. Unclip the plastic tabs and slice through the perimeter adhesive.
- 6
Lift Off the Back Cover
1 minCarefully lift the rear cover off the phone frame. Set the back panel aside in a clean area.
- 7
Unscrew the Speaker Module
3 minUse a Phillips #00 screwdriver to remove the seven screws holding the lower speaker module in place.
- 8
Remove the Loudspeaker Assembly
2 minInsert a spudger under the edge of the lower speaker housing. Pry up gently to detach and remove it from the device.
- 9
Disconnect the Main Flex Cable
1 minPry the bottom end of the main interconnect flex cable straight up from its socket on the charging daughterboard using a spudger.
- 10
Disconnect the Antenna Cable
1 minUse precision tweezers to grip the coaxial antenna connector head. Pry it straight up to disconnect it from the daughterboard.
- 11
Unscrew the Charging Board
1 minRemove the single Phillips screw securing the charging board to the inner frame.
- 12
Remove the Old Charging Board
2 minInsert the flat end of a spudger under the edge of the charging board. Gently pry the board up and out of its recess.
- 13
Insert the New Charging Board
2 minPosition the new charging board into the lower frame housing. Ensure the USB-C port aligns precisely with the frame opening.
- 14
Secure the Charging Board Screw
1 minReinstall the single Phillips screw to lock the new charging daughterboard to the frame.
- 15
Reconnect the Antenna Cable
1 minAlign the head of the coaxial antenna cable directly over its socket on the new board. Press down gently until it snaps into place.
- 16
Reconnect the Main Flex Cable
1 minAlign the press connector of the main interconnect flex cable over the daughterboard socket. Press firmly until you feel it click.
- 17
Reinstall the Loudspeaker Assembly
2 minSet the loudspeaker housing back over the daughterboard. Press down on the edges until it sits flush against the body.
- 18
Fasten the Speaker Screws
3 minThread and tighten the seven Phillips screws into the loudspeaker module until snug.
- 19
Snap the Rear Cover On
2 minAlign the rear cover with the phone body. Press firmly along the edges until all perimeter clips snap back into place.
- 20
Reinsert the SIM Card Tray
1 minSlide the SIM card tray back into its slot on the left edge until flush with the outer frame.
After your Motorola Moto G31 charging port repair
Power the Moto G31 back on and test the charging port 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 Moto G31 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 Moto G31 repair context in the encyclopedia, or open related DIY guides.

