Phone · Motorola · G40 Fusion
Motorola G40 Fusion Water Damage Repair
Water Damage Repair guide for the Motorola G40 Fusion
Before you begin
Tools
- Precision screwdriver set
- Plastic opening tools
- Anti-static wrist strap
- Tweezers
- Magnifying glass or headlamp
- SIM card eject tool
- Heat gun or hairdryer
- Spudger
Parts / materials
- 99% Isopropyl alcohol
- Soft-bristle toothbrush
- Lint-free microfiber cloth
- Replacement adhesive strips
Safety
- Disconnect the battery connector immediately after opening to prevent electrical short circuits.
- Work in a well-ventilated area while using high-concentration isopropyl alcohol.
- Wear protective eye gear to prevent alcohol splashes while brushing components.
Overview
Step-by-step
- 1
Power off device
1 minTurn off the Motorola G40 Fusion immediately and do not connect it to a charger.
- 2
Eject the SIM tray
1 minInsert a SIM eject tool into the pinhole on the left side of the frame to remove the card tray.
- 3
Heat the back cover edges
2 minWarm the perimeter of the plastic rear cover using a heat gun for two minutes to soften the underlying adhesive.
- 4
Unclip the back panel
5 minInsert a plastic opening pick between the bezel and back panel, sliding around the edge to release the clips.
- 5
Disconnect fingerprint sensor
2 minLift the rear cover slightly and use a spudger to disconnect the fingerprint reader flex cable from the motherboard.
- 6
Remove motherboard screws
3 minUnscrew the Phillips #00 screws securing the upper motherboard shield.
- 7
Remove upper bracket
2 minPry up and remove the plastic motherboard cover using tweezers.
- 8
Disconnect the battery
1 minUse a plastic spudger to pop the battery connector off the motherboard to prevent further electrical shorts.
- 9
Disconnect interconnect cables
3 minDetach the display cable, sub-board extension flex cable, and antenna coax cables from the main board.
- 10
Remove the motherboard
2 minGently lift the main motherboard out of the frame chassis using a spudger.
- 11
Remove lower speaker assembly
3 minUnscrew the Phillips screws holding the bottom loudspeaker assembly and lift it off the frame.
- 12
Remove the sub-board
2 minPry up the lower sub-board containing the USB-C port and microphone from the phone chassis.
- 13
Clean boards with isopropyl alcohol
10 minSoak the motherboard and sub-board in 99% isopropyl alcohol and scrub liquid corrosion off with a soft toothbrush.
- 14
Dry all circuit components
15 minAllow the cleaned mainboard and sub-board to air-dry completely in a well-ventilated area for at least 15 minutes.
- 15
Reinstall circuit boards
3 minSet the dried main motherboard and lower sub-board back into their respective frame slots.
- 16
Reconnect flex cables and battery
4 minSnap all display, sub-board, antenna, and battery connectors securely back onto the motherboard.
- 17
Attach brackets and back cover
5 minReinstall the protective plastic shields, secure all screws, connect the fingerprint flex, and snap the back panel back on.
After your Motorola G40 Fusion water damage repair
Power the G40 Fusion 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 Motorola G40 Fusion job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Motorola G40 Fusion repair context in the encyclopedia, or open related DIY guides.
