Phone · Samsung · Galaxy S25 Plus
Samsung Galaxy S25 Plus Water Damage Repair
Water Damage Repair guide for the Samsung Galaxy S25 Plus
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Phillips #000 screwdriver
- Tweezers
- Spudger tool
- Soft brush
- Compressed air
Parts / materials
- Isopropyl alcohol (99%)
- Clean workspace mat
- Replacement back cover adhesive strips
Safety
- Do not attempt to power on or charge a wet device until all corrosion is cleaned and parts are thoroughly dry.
- Disconnect the battery immediately after removing the rear cover to prevent active short circuits.
- Wear eye protection when using compressed air and high-concentration isopropyl alcohol.
Overview
Step-by-step
- 1
Power Off Device
1 minImmediately turn off the phone to prevent electrical short circuits. Do not plug in a charger under any circumstances.
- 2
Eject SIM Tray
1 minInsert a SIM eject tool into the pinhole at the bottom frame. Pull the SIM card tray completely out of the slot.
- 3
Heat Back Glass
3 minApply heat using a heat gun around the outer edges of the rear glass for 2 to 3 minutes to soften the waterproof adhesive.
- 4
Slice Back Panel Adhesive
5 minAttach a suction cup near the bottom edge, pull up to create a gap, and insert a plastic pick. Slide the pick around all four edges to cut the adhesive.
- 5
Lift Off Back Cover
2 minGently lift the rear glass panel away from the frame and set it aside on a clean surface.
- 6
Remove Midframe Screws
4 minUse a Phillips #000 screwdriver to remove all visible screws securing the upper midframe and lower speaker housing.
- 7
Disconnect Battery Flex Cable
2 minUse a plastic spudger to pry the battery press connector straight up from the motherboard to cut power to the system.
- 8
Detach Wireless Charging Assembly
3 minCarefully peel off the wireless charging coil and attached graphite cooling pad from the motherboard and battery.
- 9
Remove Mainboard
4 minDisconnect all remaining camera and interconnect flex cables, then carefully pry up and lift out the main logic board.
- 10
Remove Daughterboard
3 minDisconnect the display flex and lower interconnect cables, then lift the bottom daughterboard containing the USB-C port out of the chassis.
- 11
Scrub Motherboard Corrosion
8 minSubmerge the mainboard in a shallow dish of 99% isopropyl alcohol and gently scrub off water deposits using a soft brush.
- 12
Clean Daughterboard and Connectors
5 minDip the soft brush into isopropyl alcohol and thoroughly clean all frame connectors, daughterboard components, and flex cable tips.
- 13
Dry Board Components
10 minBlow away remaining alcohol and moisture from all circuit boards using gentle bursts of compressed air, then let them air-dry completely.
- 14
Reinstall Internal Boards
6 minPlace the daughterboard and mainboard back into the frame, reconnect all flex cables, and snap the battery connector in place last.
After your Samsung Galaxy S25 Plus water damage repair
Power the Galaxy S25 Plus 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 Plus 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 Plus repair context in the encyclopedia, or open related DIY guides.
