Phone · Motorola · Moto G Fast
Motorola Moto G Fast Water Damage Repair
Water Damage Repair guide for the Motorola Moto G Fast
Before you begin
Tools
- Precision Phillips #00 screwdriver
- Plastic opening picks
- Heat gun or hair dryer
- Suction cup
- Spudger
- Soft-bristled brush
- Tweezers
- Anti-static wrist strap
Parts / materials
- 99% Isopropyl alcohol
- Lint-free microfiber cloth
- Replacement back cover adhesive
Safety
- Work in a well-ventilated area when using high-concentration isopropyl alcohol.
- Disconnect the battery immediately after opening to prevent short circuits.
- Wear safety glasses to protect eyes from splashes or debris.
- Do not apply direct high heat to a swollen or damaged battery.
Overview
Step-by-step
- 1
Eject the SIM card tray
1 minInsert a SIM eject tool into the hole next to the SIM tray on the left edge. Push firmly to pop out the tray and remove it completely.
- 2
Heat the back cover edges
2 minUse a heat gun on a low setting to warm the outer edges of the rear cover for two minutes to soften the adhesive bond.
- 3
Slice the back cover adhesive
3 minAttach a suction cup near the bottom edge, pull upward, and slide an opening pick into the gap between the cover and frame.
- 4
Separate the back cover
3 minSlide the pick carefully along all edges to cut the adhesive, then lift the back cover slowly from the right side.
- 5
Disconnect the fingerprint sensor flex cable
2 minUse a plastic spudger to gently lever the fingerprint reader cable connector straight up off the motherboard.
- 6
Unscrew the motherboard bracket
3 minRemove the Phillips #00 screws securing the plastic motherboard bracket to the top portion of the frame.
- 7
Remove the motherboard bracket
2 minInsert a spudger under the plastic bracket cover and lift it clear of the device.
- 8
Disconnect the battery cable
1 minPry the battery press connector straight up from its motherboard socket to immediately disable power.
- 9
Disconnect the remaining ribbon cables
3 minUnsnap the display cable, interconnect flex cable, and antenna cable from their sockets on the motherboard.
- 10
Unscrew the motherboard
2 minRemove the Phillips screws anchoring the main logic board to the internal frame.
- 11
Lift out the motherboard
2 minGently lift the motherboard by its edges out of the body, ensuring no cables catch on the board.
- 12
Scrub the motherboard with isopropyl alcohol
10 minDip a soft-bristled brush in 99% isopropyl alcohol and gently scrub all corroded circuits, chips, and connectors.
- 13
Clean the sub-board and frame
8 minClean remaining water spots and corrosion off the lower speaker sub-board and frame using alcohol and lint-free wipes.
- 14
Dry all internal components
15 minAllow the cleaned motherboard and frame to air-dry completely in a dry environment before reassembling the device.
After your Motorola Moto G Fast water damage repair
Power the Moto G Fast 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 Moto G Fast 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 Moto G Fast repair context in the encyclopedia, or open related DIY guides.

