Phone · Motorola · Moto G7 Power
Motorola Moto G7 Power Logic Board Repair
Logic Board Repair guide for the Motorola Moto G7 Power
Before you begin
Tools
- Phillips #00 screwdriver
- Heat gun or iOpener
- Plastic opening picks
- Suction handle
- Spudger
- Tweezers
- Soldering iron
- Anti-static wrist strap
Parts / materials
- High-purity isopropyl alcohol (99%)
- Rosin flux
- Desoldering braid
- Replacement back cover adhesive strips
Safety
- Wear eye protection when soldering or using a heat gun.
- Work in a well-ventilated area to avoid inhaling flux fumes.
- Wear an anti-static wrist strap to prevent electrostatic discharge damage to components.
Overview
Step-by-step
- 1
Eject SIM tray
1 minPower off the phone completely and insert a SIM eject tool into the tray hole to remove the SIM card holder.
- 2
Heat rear panel adhesive
3 minApply heat to the edges of the back cover using a heat gun for 2 minutes to soften the glue.
- 3
Slice back cover adhesive
5 minPress a suction cup near the bottom edge, pull up, and slide an opening pick around the perimeter to cut the adhesive.
- 4
Open back cover carefully
2 minFold the back cover to the right side like a book, taking care not to stretch the attached fingerprint sensor cable.
- 5
Disconnect fingerprint sensor cable
3 minRemove the protective metal bracket with tweezers and pry the fingerprint connector straight up from the board.
- 6
Unscrew motherboard cover
4 minRemove the Phillips #00 screws securing the plastic upper motherboard shield.
- 7
Remove motherboard shield
2 minInsert a spudger under the edge of the plastic shield and lift it off the phone.
- 8
Disconnect battery press connector
1 minPry the battery connector directly up from the logic board using a plastic spudger to cut all power.
- 9
Detach interconnect and display cables
3 minDisconnect the display cable, lower interconnect flex, and antenna coax cables from the logic board.
- 10
Remove logic board retaining screws
2 minUnscrew the remaining Phillips screws anchoring the logic board to the internal midframe.
- 11
Extract the logic board
2 minGently pry up the edges of the logic board and lift it clear of the phone chassis.
- 12
Reflow faulty board components
10 minApply liquid flux to the targeted repair area and use a soldering iron or hot air station to reflow loose joints.
- 13
Clean board with isopropyl alcohol
3 minScrub away excess flux residue from the board using a soft brush dipped in 99% isopropyl alcohol.
- 14
Reinstall logic board and cables
5 minSet the board back into the frame, tighten all screws, and reconnect all flex cables and the battery.
After your Motorola Moto G7 Power logic board repair
Power the Moto G7 Power 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 G7 Power 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 G7 Power repair context in the encyclopedia, or open related DIY guides.
