Phone · Motorola · G 5G
Motorola G 5G Logic Board Repair
Logic Board Repair guide for the Motorola G 5G
Before you begin
Tools
- Precision screwdriver set
- Plastic opening tools
- Heat gun
- Tweezers
- SIM eject tool
- Soldering iron
- Desoldering braid
- Anti-static wrist strap
Parts / materials
- Liquid flux
- Isopropyl alcohol (99%)
- Replacement back cover adhesive
- Lead-free solder wire
Safety
- Wear eye protection when soldering to guard against flux splatter.
- Work in a well-ventilated area to avoid inhaling soldering fumes.
- Wear an anti-static wrist strap to prevent electrostatic discharge damage to board chips.
- Handle the heat gun with caution to prevent thermal burns.
Overview
Step-by-step
- 1
Power Off Phone
1 minPress and hold the power button, then select the power off option on the screen.
- 2
Eject SIM Tray
1 minInsert a SIM eject tool into the hole on the left edge and pull out the SIM card tray.
- 3
Heat Back Panel
2 minApply heat to the edges of the rear panel using a heat gun set to 80°C for two minutes to soften the adhesive.
- 4
Slice Rear Adhesive
4 minInsert a plastic opening pick between the rear panel and frame to slice through the perimeter adhesive.
- 5
Disconnect Fingerprint Cable
2 minSlightly lift the rear cover and use a plastic spudger to disconnect the fingerprint sensor flex cable.
- 6
Unscrew Motherboard Bracket
3 minRemove the Phillips screws securing the plastic motherboard protective cover using a precision screwdriver.
- 7
Remove Protective Bracket
2 minUse tweezers to lift the plastic motherboard shield out of the phone body.
- 8
Disconnect Battery Cable
1 minPry up the battery press connector from the motherboard using a plastic spudger to cut off power.
- 9
Unplug Flex Cables
3 minDisconnect the main display, sub-board interconnect, and front camera ribbon cables from the motherboard.
- 10
Disconnect Antenna Cables
2 minUse precision tweezers to pop the white and black coaxial antenna connectors off the logic board.
- 11
Remove Logic Board Screw
2 minUnscrew the single Phillips screw securing the logic board to the midframe.
- 12
Pry Up Logic Board
3 minInsert a plastic spudger beneath the bottom edge of the logic board and gently pry it out of the chassis.
- 13
Rework Board Connections
10 minApply flux to the damaged board pads and use a soldering iron with desoldering braid to clear broken solder joints.
After your Motorola G 5G logic board repair
Power the G 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 G 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 G 5G repair context in the encyclopedia, or open related DIY guides.
