Phone · Motorola · G71S
Motorola G71S Logic Board Repair
Logic Board Repair guide for the Motorola G71S
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Precision screwdriver set (Phillips #000)
- Tweezers
- Spudger tool
- SIM eject tool
Parts / materials
- Back cover adhesive pre-cut sticker
- Isopropyl alcohol (99%)
- Clean microfiber cloth
Safety
- Wear safety glasses to protect against potential glass shards if the back cover cracks.
- Wear an anti-static wrist strap to prevent electrostatic discharge damage to sensitive microchips.
- Do not puncture or bend the battery while working near internal components.
Overview
Step-by-step
- 1
Power Off Phone
1 minPress and hold the Power button, then select Power Off on the screen to completely shut down the device.
- 2
Remove SIM Card Tray
1 minInsert a SIM eject tool into the hole beside the SIM card tray on the side of the phone and pull the tray out.
- 3
Heat Back Cover
3 minUse a heat gun or hair dryer on low heat to warm the outer edges of the rear panel for two minutes to soften the adhesive.
- 4
Slice Perimeter Adhesive
5 minAttach a suction cup near the bottom edge, pull upward, and insert a plastic prying pick into the gap to slice through the adhesive around the perimeter.
- 5
Lift Off Back Cover
2 minCarefully separate the rear back cover from the phone frame and place it on a clean surface.
- 6
Unscrew Motherboard Frame
3 minUse a Phillips #000 screwdriver to remove all screws securing the upper plastic motherboard shield.
- 7
Remove Upper Plastic Shield
2 minGently insert the flat end of a spudger under the motherboard shield and lift it off the frame.
- 8
Disconnect Battery Cable
1 minPry the battery press connector straight up from the motherboard using a nylon spudger to cut power to the device.
- 9
Disconnect Main Interconnect Cables
2 minUse the spudger to unclip the display flex cable and the main interconnect ribbon cable from the logic board.
- 10
Disconnect Antenna Cables
2 minUse precision tweezers to unclip the coaxial antenna cables from the motherboard edges.
- 11
Remove Rear Camera Assembly
3 minDisconnect the rear camera press connectors and carefully lift the camera module off the board.
- 12
Remove Front Camera
2 minUnplug the front selfie camera flex cable and pull the camera module out of its housing.
- 13
Unscrew Logic Board
2 minRemove the single Phillips #000 retaining screw holding the logic board to the internal chassis.
- 14
Lift Out Logic Board
3 minGently leverage a plastic spudger under the top corner of the logic board and lift it out from the phone body.
After your Motorola G71S logic board repair
Power the G71S back on and test the logic board 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 G71S 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 G71S repair context in the encyclopedia, or open related DIY guides.
