Phone · Samsung · Galaxy S25
Samsung Galaxy S25 Water Damage Repair
Water Damage Repair guide for the Samsung Galaxy S25
Before you begin
Tools
- Phillips #00 screwdriver
- Plastic opening tools
- Suction cup
- Heat gun
- Precision tweezers
- Anti-static wrist strap
- Soft nylon brush
- Plastic spudger
Parts / materials
- 99% Isopropyl alcohol
- Lint-free microfiber cloths
- Replacement back cover adhesive
- Compressed air canister
Safety
- Wear safety glasses to protect eyes from alcoholic splashes and flying debris.
- Work in a well-ventilated area away from open flames when using high-concentration isopropyl alcohol.
- Disconnect the battery immediately upon opening to prevent short-circuiting electrical components.
- Use an anti-static wrist strap to protect sensitive microchips from static discharge.
Overview
Step-by-step
- 1
Power Off and Eject SIM Tray
1 minTurn off the Galaxy S25 immediately to prevent short circuits. Insert a SIM eject tool into the pinhole to remove the tray.
- 2
Heat the Rear Glass Cover
3 minApply a heat gun set to low or an iOpener around the edges of the rear panel for two minutes to soften the adhesive.
- 3
Slice Rear Glass Adhesive
5 minAttach a suction cup near the bottom edge, lift gently, and insert a plastic opening pick under the seal. Slide the pick around the perimeter.
- 4
Remove Rear Glass Assembly
2 minLift the rear glass panel away from the chassis once all adhesive is sliced. Set the panel aside in a safe location.
- 5
Unscrew Upper Shield Frame
3 minRemove the Phillips #00 screws securing the wireless charging coil and upper motherboard shield.
- 6
Remove Wireless Charging Coil
2 minPry up the wireless charging pad gently using a plastic spudger and remove it from the device.
- 7
Disconnect Battery Press Connector
1 minUse a plastic spudger to pry the battery connector straight up from the motherboard. This cuts off all active power.
- 8
Unscrew Lower Speaker Module
2 minRemove the Phillips #00 screws securing the lower speaker housing over the daughterboard assembly.
- 9
Remove Lower Speaker Enclosure
2 minPry the speaker enclosure up and out of the bottom frame to access the USB-C sub-board.
- 10
Disconnect Display and Flex Cables
3 minDisconnect the main ribbon cables, display connector, and antenna lines from the motherboard and sub-board.
- 11
Extract Main Motherboard
3 minRemove any remaining logic board retaining screws and carefully lift the mainboard out of the chassis.
- 12
Extract USB-C Daughterboard
2 minLift the sub-board straight out of the lower enclosure using precision tweezers.
- 13
Scrub Corrosion from Boards
8 minDip a soft nylon brush in 99% isopropyl alcohol and gently scrub away visible corrosion from both circuit boards.
- 14
Soak Components in Alcohol Bath
10 minSubmerge the motherboard and daughterboard in a shallow container filled with 99% isopropyl alcohol to displace trapped water.
- 15
Dry Components Thoroughly
15 minBlow excess liquid off the boards using low-pressure compressed air, then lay them on a lint-free towel to dry completely.
- 16
Clean Chassis and Reassemble
10 minWipe residual moisture from inside the phone housing before reinstalling the boards, connecting the battery last, and resealing.
After your Samsung Galaxy S25 water damage repair
Power the Galaxy S25 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 S25 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 S25 repair context in the encyclopedia, or open related DIY guides.
