Phone · LG · G7 ThinQ
LG G7 ThinQ Water Damage Repair
Water Damage Repair guide for the LG G7 ThinQ
Before you begin
Tools
- Phillips #00 Screwdriver
- Heat gun or iOpener
- Suction cup
- Plastic opening picks
- Spudger
- Soft anti-static brush
- Tweezers
Parts / materials
- 99% Isopropyl alcohol
- Lint-free wipes
- Replacement back glass adhesive strips
Safety
- Work in a well-ventilated area when using high-concentration isopropyl alcohol.
- Disconnect the battery immediately upon opening to prevent short-circuiting water-damaged components.
- Wear an anti-static wrist strap to prevent electrostatic discharge while handling delicate logic boards.
Overview
Step-by-step
- 1
Power off and remove SIM tray
2 minTurn off the LG G7 ThinQ completely and eject the SIM card tray using a SIM eject tool or paperclip.
- 2
Heat the rear glass
3 minApply a heat gun or iOpener to the outer edges of the back panel for two minutes to soften the adhesive.
- 3
Attach suction cup
2 minPress a suction cup onto the lower third of the rear glass and gently pull upward to create a small gap.
- 4
Insert opening pick
4 minSlide a plastic opening pick into the gap between the glass and the aluminum frame to slice through the adhesive.
- 5
Slice perimeter adhesive
5 minCarefully slide the pick around all four edges of the back cover, reheating the glass if resistance increases.
- 6
Disconnect fingerprint sensor
2 minSlightly lift the rear panel and use a spudger to pop off the fingerprint reader ribbon cable connector.
- 7
Remove rear glass
1 minLift the rear glass cover completely off the chassis and set it aside on a clean surface.
- 8
Unscrew midframe fasteners
4 minRemove the 14 Phillips #00 screws securing the wireless charging coil frame and loudspeaker assembly.
- 9
Remove wireless charging coil
2 minPry up the upper wireless charging assembly with a spudger and lift it out of the phone.
- 10
Disconnect battery cable immediately
1 minPry the battery connector straight up off the motherboard using a plastic spudger to stop electrical currents.
- 11
Remove loudspeaker module
2 minInsert a plastic opening tool beneath the bottom speaker module and lift it out of the chassis.
- 12
Disconnect ribbon cables
3 minUnplug the display flex cable, front camera, rear cameras, and headphone jack connectors from the motherboard.
- 13
Extract motherboard
3 minGently lift the main motherboard up from its top edge and remove it from the phone frame.
- 14
Clean motherboard with alcohol
10 minSubmerge the motherboard in 99% isopropyl alcohol and scrub away visible corrosion using a soft anti-static brush.
- 15
Clean internal frame contacts
5 minWipe down all remaining frame cavities, rubber seals, and connector contacts using lint-free wipes soaked in isopropyl alcohol.
- 16
Dry components thoroughly
15 minAllow the motherboard and frame components to dry completely in a warm, ventilated area for at least two hours.
- 17
Reinstall motherboard and test
8 minPlace the motherboard back in the frame, reconnect all internal flex cables including the battery, and power on the device to test functionality.
After your LG G7 ThinQ water damage repair
Power the G7 ThinQ back on and test the water damage 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 LG G7 ThinQ job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more LG G7 ThinQ repair context in the encyclopedia, or open related DIY guides.
