Phone · Motorola · G04
Motorola G04 Water Damage Repair
Water Damage Repair guide for the Motorola G04
Before you begin
Tools
- Precision screwdriver set (Phillips #000)
- Plastic prying tools
- Suction cup tool
- Heat gun or hair dryer
- Tweezers
- Spudger tool
- Soft brush
- Compressed air
Parts / materials
- Isopropyl alcohol (99%)
- Clean workspace mat
- Back cover replacement adhesive
Safety
- Do not power on or attempt to charge a water-damaged device until it is fully dismantled, cleaned, and dried.
- Disconnect the battery press connector before touching or removing any circuit components.
- Use isopropyl alcohol only in a well-ventilated area away from open flames.
Overview
Step-by-step
- 1
Eject SIM Tray
1 minInsert a SIM eject tool into the pinhole on the left side of the Motorola G04. Pull the SIM card tray completely out of the device.
- 2
Heat Back Cover Edges
2 minApply heat evenly around the outer perimeter of the back panel using a heat gun for 2 minutes to soften the adhesive.
- 3
Attach Suction Cup
1 minPlace a suction cup on the lower third of the back cover and press down firmly to secure grip.
- 4
Slice Back Cover Adhesive
4 minPull up on the suction cup to create a seam, then insert a plastic prying pick and slide it along the perimeter.
- 5
Lift Off Back Cover
1 minCarefully separate the plastic back cover from the body and set it aside.
- 6
Unscrew Motherboard Frame
3 minRemove the Phillips #000 screws holding the upper plastic protective cover over the motherboard.
- 7
Remove Motherboard Cover
1 minInsert a spudger under the edge of the upper bracket and pop it off the frame.
- 8
Disconnect Battery Cable
1 minPry the battery press connector straight up from the motherboard using a plastic spudger to cut all electrical power.
- 9
Disconnect Flex Cables
2 minUnplug the main display cable, interconnect cable, and antenna cable from the main motherboard.
- 10
Unscrew Mainboard
2 minRemove the remaining Phillips screws holding the motherboard inside the housing frame.
- 11
Extract Mainboard
2 minGently lift the motherboard out of the housing frame using tweezers, taking care not to snag remaining flex cables.
- 12
Unscrew Loudspeaker Assembly
2 minRemove the Phillips #000 screws securing the bottom speaker enclosure.
- 13
Remove Charging Sub-Board
2 minDisconnect the lower interconnect ribbon and pry the lower USB charging board out of the phone frame.
- 14
Soak Components in Alcohol
5 minSubmerge both the isolated mainboard and sub-board in a container filled with 99% isopropyl alcohol for 5 minutes.
- 15
Scrub Away Corrosion
5 minGently clean all liquid residue and white corrosion off both circuit boards using a soft brush.
- 16
Dry Circuit Boards
15 minBlow compressed air across the boards to remove trapped liquid, then leave them to air dry completely on a clean mat.
- 17
Reassemble Phone Frame
10 minReinstall the dried circuit boards into the frame, reconnect all flex cables, secure screws, and attach the back cover.
After your Motorola G04 water damage repair
Power the G04 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 G04 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 G04 repair context in the encyclopedia, or open related DIY guides.

