Phone · LG · V50 ThinQ 5G
LG V50 ThinQ 5G Water Damage Repair
Water Damage Repair guide for the LG V50 ThinQ 5G
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Phillips #000 screwdriver
- Tweezers
- Spudger tool
- Soft brush
Parts / materials
- Isopropyl alcohol (99%)
- Compressed air
- Pre-cut back glass adhesive
- Microfiber cloth
Safety
- Wear safety glasses when using compressed air to clear liquid debris.
- Operate in a well-ventilated area when using high-concentration isopropyl alcohol.
- Never attempt to power on or charge a wet or corroded lithium-ion battery.
Overview
Step-by-step
- 1
Power off the phone
1 minTurn off the phone immediately to prevent further electrical short circuits.
- 2
Eject the SIM tray
1 minInsert a SIM eject tool into the hole on the side to remove the tray and card.
- 3
Heat the rear glass
3 minApply heat around the edges of the back panel for two minutes using a heat gun set to low.
- 4
Attach the suction cup
2 minPlace a suction cup on the lower half of the back glass and pull up gently to create a small gap.
- 5
Slice the back glass adhesive
5 minInsert an opening pick into the gap and slide it along the perimeter to slice through the adhesive seal.
- 6
Lift off the back glass
2 minCarefully lift the rear panel off the housing frame and set it aside.
- 7
Unscrew the upper midframe
4 minRemove all Phillips #000 screws securing the plastic upper midframe and wireless charging coil.
- 8
Pry up the upper midframe
2 minUse a spudger to gently pop the plastic midframe out of the phone chassis.
- 9
Disconnect the battery
2 minPry the battery connector straight up from the motherboard using a plastic spudger to cut power.
- 10
Disconnect flex cables
3 minUnplug the display, charging port, front camera, and button ribbon cables from the logic board.
- 11
Remove the motherboard
3 minCarefully lift the main motherboard out of the frame using blunt tweezers or a spudger.
- 12
Inspect and remove EMI shields
5 minGently pry off removable metal EMI shields to expose hidden corrosion on the circuit board.
- 13
Scrub board with isopropyl alcohol
10 minSubmerge the motherboard in 99% isopropyl alcohol and scrub away corrosion gently using a soft brush.
- 14
Dry the board with compressed air
5 minBlow away remaining alcohol and liquid from under chips using short bursts of compressed air.
- 15
Clean chassis connectors
4 minDip a soft brush in isopropyl alcohol and clean all ribbon cable connectors remaining inside the chassis.
- 16
Reinstall the motherboard
3 minPlace the fully dried motherboard back into the housing and align it with the alignment posts.
- 17
Reconnect all flex cables
4 minPress each ribbon cable connector firmly onto the board, reconnecting the battery cable last.
- 18
Reattach the upper midframe
3 minSet the upper midframe into place and drive in the Phillips screws until secure.
- 19
Seal the rear glass
5 minApply new back glass adhesive, align the rear panel, and press firmly along the edges to seal.
After your LG V50 ThinQ 5G water damage repair
Power the V50 ThinQ 5G 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 V50 ThinQ 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 LG V50 ThinQ 5G repair context in the encyclopedia, or open related DIY guides.
