Phone · Samsung · Galaxy Z Flip 4 5G
Samsung Galaxy Z Flip 4 5G Water Damage Repair
Water Damage Repair guide for the Samsung Galaxy Z Flip 4 5G
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Precision screwdriver set (Phillips #000)
- Spudger tool
- Tweezers
- Soft brush
- Compressed air
Parts / materials
- Isopropyl alcohol (99%)
- Pre-cut back glass adhesive strips
- Lint-free microfiber cloth
Safety
- Power off the device completely before beginning disassembly to prevent short circuits.
- Disconnect all battery leads before cleaning components with liquids.
- Work in a well-ventilated area when using high-concentration isopropyl alcohol.
Overview
Step-by-step
- 1
Power off the phone
1 minTurn off the Galaxy Z Flip 4 immediately to prevent further electrical shorting.
- 2
Heat the upper back glass panel
2 minApply a heat gun set to low heat around the edges of the upper back glass for two minutes to soften the adhesive.
- 3
Remove the upper back glass
5 minAttach a suction cup to the upper glass, lift gently to create a gap, and slice the adhesive with an opening pick.
- 4
Heat the lower back glass cover
2 minApply heat evenly around the perimeter of the lower glass cover.
- 5
Slice lower glass adhesive
5 minInsert a plastic opening pick under the lower glass edge and slice through the adhesive perimeter to remove it.
- 6
Unbolt the wireless charging coil
3 minRemove the Phillips #000 screws holding down the wireless charging assembly and upper bracket.
- 7
Disconnect the upper battery
2 minUse a plastic spudger to detach the upper battery flex cable from the main motherboard.
- 8
Disconnect the lower battery
2 minPry up the lower battery flex cable from the daughterboard socket using a spudger.
- 9
Remove the main motherboard
5 minUnbolt the remaining structural screws, disconnect the interconnect cables, and lift out the main motherboard.
- 10
Remove the lower daughterboard
4 minRemove the lower speaker housing screws and lift out the daughterboard containing the charging port.
- 11
Soak circuit boards in alcohol
5 minSubmerge the motherboard and daughterboard in a shallow container filled with 99% isopropyl alcohol.
- 12
Scrub corrosion from boards
6 minUse a soft ESD brush to gently scrub away white or green mineral buildup on both circuit boards.
- 13
Dry the components
15 minBlow off liquid residue using compressed air and let the components air-dry completely in a warm spot.
- 14
Reinstall circuit boards
5 minPlace the dried motherboard and daughterboard back into the chassis and replace their retaining screws.
- 15
Reconnect battery flex cables
2 minSnap the upper and lower battery connectors firmly back into their respective board sockets.
- 16
Reseal back glass panels
5 minApply fresh precut adhesive strips to the housing edges and press the upper and lower glass covers into place.
After your Samsung Galaxy Z Flip 4 5G water damage repair
Power the Galaxy Z Flip 4 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 Samsung Galaxy Z Flip 4 5G job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Prefer a professional repair?
Book Samsung Galaxy Z Flip 4 5G water damage repair at LML Repair in Seattle — same-day options available.
