Phone · Motorola · Moto G51 5G
Motorola Moto G51 5G Logic Board Repair
Logic Board Repair guide for the Motorola Moto G51 5G
Before you begin
Tools
- SIM eject tool
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Precision screwdriver set (Phillips #00)
- Spudger tool
- Tweezers
Parts / materials
- Replacement rear cover adhesive tape
- Isopropyl alcohol (99%)
Safety
- Always wear anti-static protection when handling exposed logic board electronics.
- Disconnect the battery immediately after removing the motherboard shield to prevent electrical shorts.
- Avoid using metal prying tools near the lithium-ion battery.
Overview
Step-by-step
- 1
Power Down the Device
1 minPress and hold the power button to shut down the Moto G51 5G completely before beginning.
- 2
Eject the SIM Tray
1 minInsert a SIM eject pin into the pinhole on the upper-left edge and remove the SIM card tray.
- 3
Heat the Rear Cover
2 minApply a heat gun set on low around the edges of the back cover for two minutes to soften the adhesive.
- 4
Attach the Suction Cup
1 minPlace a suction cup on the lower half of the rear panel and pull upward to create a slight gap at the seam.
- 5
Slice the Rear Adhesive
4 minInsert a plastic opening pick into the gap and slide it along the perimeter to cut through the glue.
- 6
Remove the Back Cover
1 minCarefully lift the rear plastic cover off the chassis and place it aside.
- 7
Unscrew the Motherboard Frame
3 minRemove the 13 Phillips #00 screws securing the plastic motherboard frame to the chassis.
- 8
Remove the Motherboard Frame
2 minInsert a spudger under the top edge of the plastic frame cover and lift it away from the phone.
- 9
Disconnect the Battery Flex
1 minUse a plastic spudger to pry the battery connector directly up from the logic board.
- 10
Disconnect the Fingerprint Flex Cable
1 minPry up the side-mounted fingerprint sensor press connector from the right side of the logic board.
- 11
Disconnect Display and Main Flex Cables
2 minLever up the display press-fit connector and the primary interconnect flex cable from the logic board.
- 12
Unclip the Coaxial Antenna
1 minUse fine tweezers to gently unclip the head of the coaxial antenna cable from its board connector.
- 13
Disconnect the Cameras
2 minDetach the front-facing selfie camera and the rear camera cluster connectors from the logic board.
- 14
Lift Out the Logic Board
2 minInsert a spudger under the bottom edge of the logic board and gently pry it out of the plastic chassis.
- 15
Position the New Logic Board
2 minAlign the replacement logic board into the frame top-first, ensuring no flex cables get trapped underneath.
- 16
Reconnect Cables and Reassemble
4 minSnap all camera, display, interconnect, antenna, and battery flex cables back onto the replacement logic board.
After your Motorola Moto G51 5G logic board repair
Power the Moto G51 5G 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 Moto G51 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 Moto G51 5G repair context in the encyclopedia, or open related DIY guides.
