Phone · Motorola · G8 Plus
Motorola G8 Plus Logic Board Repair
Logic Board Repair guide for the Motorola G8 Plus
Before you begin
Tools
- Phillips #00 screwdriver
- Heat gun or hair dryer
- Suction cup tool
- Plastic opening picks
- Spudger tool
- Precision tweezers
Parts / materials
- Pre-cut back cover adhesive
- Isopropanol (99%)
- Microfiber cleaning cloth
Safety
- Wear eye protection when heating plastic panels to prevent injury from potential fractures.
- Disconnect the battery cable immediately after removing the midframe bracket to prevent electrical shorts.
- Do not puncture, bend, or apply pressure to the lithium-ion battery during repair.
Overview
Step-by-step
- 1
Eject SIM Tray
1 minInsert a SIM eject tool into the hole next to the SIM tray on the left edge. Push firmly to eject the tray and remove it.
- 2
Heat Back Cover
3 minApply a heat gun or hair dryer around the rear outer edges for two minutes to soften the underlying adhesive.
- 3
Slice Rear Adhesive
4 minAttach a suction cup near the bottom edge, pull up to create a gap, and insert an opening pick. Slide the pick along the edges to slice through the adhesive.
- 4
Disconnect Fingerprint Cable
2 minGently hinge the back cover open from the right side. Use a spudger to pry the fingerprint sensor press-connector up from the motherboard.
- 5
Unscrew Plastic Midframe
3 minUse a Phillips #00 screwdriver to remove all visible screws securing the upper plastic motherboard bracket.
- 6
Remove Plastic Bracket
2 minInsert a spudger beneath the plastic motherboard bracket and pop it loose from the frame clips.
- 7
Disconnect Battery Flex Cable
1 minPry the battery connector straight up from its motherboard socket using a plastic spudger.
- 8
Disconnect Interconnect and Display Cables
2 minUnsnap the main display flex cable and the sub-board interconnect flex cable from the bottom edge of the motherboard.
- 9
Unplug Antenna Cables
2 minUse precision tweezers to carefully pry the white and black coaxial antenna cables straight up from their motherboard terminals.
- 10
Disconnect Camera Cables
2 minUnplug the front-facing camera and rear camera flex connectors from the top section of the board.
- 11
Unscrew Logic Board
2 minRemove the single Phillips #00 retaining screw anchoring the logic board to the inner chassis.
- 12
Remove Logic Board
2 minInsert a spudger under the bottom edge of the motherboard and gently lift it up and out of the phone body.
- 13
Position Replacement Logic Board
2 minAlign the replacement motherboard over the frame and lower it into place, ensuring no loose cables are trapped beneath it.
- 14
Secure Board Screw
2 minReinstall and tighten the single Phillips #00 screw to anchor the logic board in place.
- 15
Reconnect Cameras and Antennas
3 minPress the front and rear cameras back into their sockets, then snap the antenna cable heads onto their coaxial terminals.
- 16
Attach Display and Interconnect Cables
2 minAlign the display and sub-board interconnect flex cables over their motherboard headers and press firmly until they click.
- 17
Connect Battery and Reinstall Bracket
3 minPlug in the battery connector, align the plastic upper midframe over the motherboard, and secure it with its Phillips #00 screws.
- 18
Reattach Fingerprint Cable and Rear Cover
4 minPlug the fingerprint sensor cable back into the board, apply fresh perimeter adhesive, and press the rear cover firmly onto the frame.
After your Motorola G8 Plus logic board repair
Power the G8 Plus 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 G8 Plus 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 G8 Plus repair context in the encyclopedia, or open related DIY guides.
