Phone · Motorola · Moto G8 Plus
Motorola Moto G8 Plus Water Damage Repair
Water Damage Repair guide for the Motorola Moto G8 Plus
Before you begin
Tools
- Phillips #00 screwdriver
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Spudger tool
- Soft brush
- Compressed air
Parts / materials
- Isopropyl alcohol (99%)
- Microfiber cloth
- Replacement back cover adhesive
Safety
- Do not plug in or turn on a wet phone prior to thorough cleaning and drying.
- Wear eye protection when handling high-concentration isopropyl alcohol and compressed air.
- Disconnect the battery flex cable immediately upon opening the device to prevent electrical shorts.
Overview
Step-by-step
- 1
Turn off the phone completely
1 minPress and hold the power button, then select Power Off. Never perform water damage repairs while electricity is flowing through the device.
- 2
Eject the SIM card tray
1 minInsert a SIM eject tool into the hole beside the card tray on the left edge. Pull the SIM and microSD tray completely out.
- 3
Heat the rear panel
2 minApply heat to the edges of the back cover for two minutes using a heat gun or hair dryer to soften the adhesive.
- 4
Slice through the rear adhesive
5 minAttach a suction cup near the bottom edge, lift up to create a small gap, and insert an opening pick. Slide the pick around the edges to release the back cover.
- 5
Disconnect the fingerprint sensor cable
2 minGently swing the back cover open like a book to the left side. Use a plastic spudger to pop the fingerprint sensor flex cable off the motherboard.
- 6
Remove the motherboard bracket screws
3 minUse a Phillips #00 screwdriver to remove all screws holding the upper plastic motherboard cover in place.
- 7
Pry off the upper midframe cover
2 minInsert a spudger under the plastic top housing and unclip it from the frame to reveal the main motherboard.
- 8
Disconnect the battery flex cable
1 minPry the battery press connector straight up from the motherboard using a plastic spudger to cut power immediately.
- 9
Unscrew the lower speaker housing
3 minRemove the Phillips #00 screws securing the bottom loudspeaker module to the phone chassis.
- 10
Remove the speaker module
2 minPry up the lower plastic speaker housing with a spudger and remove it from the device.
- 11
Detach all interconnect flex cables
3 minDisconnect the main display flex cable, sub-board interconnect cable, and white antenna coaxial cables from the motherboard and sub-board.
- 12
Lift out the motherboard
3 minCarefully pry the motherboard out of its recessed bay in the chassis using a plastic spudger.
- 13
Remove the lower sub-board
2 minGently lift the small daughterboard containing the USB-C port and microphone away from the bottom of the frame.
- 14
Scrub corroded areas with isopropyl alcohol
10 minDip a soft-bristle brush into 99% isopropyl alcohol and gently scrub white or green corrosion off the motherboard, sub-board, and connectors.
- 15
Blow dry components with compressed air
5 minSpray short bursts of compressed air over the boards to dislodge remaining liquid, then let the parts dry thoroughly for 30 minutes.
- 16
Reinstall the mainboards into the frame
3 minPlace the cleaned motherboard and daughterboard back into their exact locations in the chassis.
- 17
Reconnect the flex cables and battery
4 minSnap the display flex cable, interconnect flex cable, and antenna wires back into place, then reconnect the battery cable last.
- 18
Secure the midframe and reattach the back panel
5 minReinstall all midframe screws, reconnect the fingerprint reader, and press the back cover firmly onto the chassis using fresh adhesive strips.
After your Motorola Moto G8 Plus water damage repair
Power the Moto G8 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 Motorola Moto G8 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 Motorola Moto G8 Plus repair context in the encyclopedia, or open related DIY guides.

