Phone · Samsung · Galaxy S20 Ultra
Samsung Galaxy S20 Ultra Water Damage Repair
Water Damage Repair guide for the Samsung Galaxy S20 Ultra
Before you begin
Tools
- Heat gun
- Phillips #000 screwdriver
- Opening picks
- Suction cup
- Plastic spudger
- Soft anti-static brush
- SIM eject tool
Parts / materials
- 99% Isopropyl alcohol
- Compressed air
- Replacement rear glass adhesive
Safety
- Disconnect the battery immediately after removing the midframe to prevent electrical shorts.
- Wear safety glasses when using compressed air to clear liquid residue.
- Handle 99% isopropyl alcohol in a well-ventilated workspace away from open flames.
Overview
Step-by-step
- 1
Eject the SIM tray
1 minInsert a SIM eject pin into the hole on top of the phone frame to release and remove the SIM card tray.
- 2
Heat the rear glass
2 minApply heat around the perimeter of the rear glass with a heat gun for two minutes to soften the internal adhesive.
- 3
Insert an opening pick
3 minPlace a suction cup on the lower back glass, pull upward to create a small gap, and insert an opening pick.
- 4
Slice the back cover adhesive
4 minSlide the pick carefully around all four edges of the back cover to cut through the remaining adhesive tape.
- 5
Remove the rear glass
1 minLift the rear glass panel off the chassis and set it aside on a clean surface.
- 6
Unscrew the top midframe
4 minRemove the 15 Phillips #000 screws holding the upper midframe and wireless charging pad in place.
- 7
Detach the wireless charging coil
2 minPry up the edge of the wireless charging pad using a spudger and remove the coil assembly from the frame.
- 8
Disconnect the battery
1 minPry the battery press-connector straight up off the motherboard using a plastic spudger to cut off power.
- 9
Remove the loudspeaker assembly
3 minUnscrew the lower bracket screws and pry the loudspeaker module out from the bottom of the device.
- 10
Disconnect motherboard cables
3 minDisconnect the main display flex cable, interconnect cables, and front camera connectors from the motherboard.
- 11
Extract the motherboard
2 minCarefully pry the motherboard up from its recessed slot and remove it completely from the phone frame.
- 12
Extract the charging port board
2 minRemove the daughterboard screws and gently lift the charging port assembly out of the lower chassis.
- 13
Soak components in isopropyl alcohol
10 minSubmerge the motherboard and daughterboard in a shallow bath of 99% isopropyl alcohol for 10 minutes to displace trapped water.
- 14
Scrub corrosion from boards
5 minGently scrub white or green liquid corrosion deposits off both circuit boards using a soft anti-static brush soaked in alcohol.
- 15
Blow dry the circuit boards
5 minBlow compressed air across both boards to remove residual alcohol and moisture from under microchips, then let dry for two hours.
After your Samsung Galaxy S20 Ultra water damage repair
Power the Galaxy S20 Ultra 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 Samsung Galaxy S20 Ultra job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Samsung Galaxy S20 Ultra repair context in the encyclopedia, or open related DIY guides.
