Phone · Motorola · Moto G73
Motorola Moto G73 Water Damage Repair
Water Damage Repair guide for the Motorola Moto G73
Before you begin
Tools
- Precision screwdriver set
- Plastic opening tools
- Anti-static wrist strap
- Tweezers
- Magnifying glass or headlamp
- Heat gun or hair dryer
- SIM card eject tool
- Soft-bristle toothbrush
- Spudger
Parts / materials
- 99% Isopropyl alcohol
- B-7000 frame adhesive or pre-cut adhesive strips
- Lint-free microfiber cloth
Safety
- Work in a well-ventilated area when using high-concentration isopropyl alcohol.
- Wear safety glasses to protect your eyes from accidental liquid splashes during brushing.
- Always disconnect the battery immediately after opening the device to prevent electrical shorts.
Overview
Step-by-step
- 1
Power off the device
1 minPress and hold the power button, then select power off to shut down the phone completely.
- 2
Eject the SIM tray
1 minInsert a SIM eject pin into the hole on the left edge of the frame to pop out the SIM tray.
- 3
Heat the rear panel
2 minApply a heat gun or hot air station around the rear edges for 2 minutes to soften the back cover adhesive.
- 4
Slice perimeter adhesive
4 minInsert a plastic opening pick beneath the bottom edge of the rear panel and slice through the adhesive around all edges.
- 5
Remove the back cover
1 minLift the rear plastic panel off the phone body and set it aside on a clean surface.
- 6
Unscrew the midframe cover
3 minUse a Phillips #00 screwdriver to remove all visible screws securing the internal plastic midframe cover.
- 7
Unclip and lift midframe
2 minInsert a plastic pry tool under the midframe edge and unclip it from the housing to expose the motherboard.
- 8
Disconnect the battery cable
1 minUse a nylon spudger to pry the battery press connector directly off the motherboard to prevent short circuits.
- 9
Disconnect display and interconnect flexes
2 minPry up the press connectors for the main display cable and the bottom daughterboard interconnect cable.
- 10
Remove motherboard screws
1 minUnscrew the single Phillips screw holding the upper motherboard board in place inside the chassis.
- 11
Extract the motherboard
2 minGently lift the mainboard out of the frame using plastic opening tools, taking care not to snag remaining antenna cables.
- 12
Remove the daughterboard assembly
3 minUnscrew and lift out the lower loudspeaker module, then remove the charging daughterboard from the bottom of the housing.
- 13
Inspect components under magnification
3 minExamine both circuit boards under a magnifying glass to locate areas with white or green corrosion crust.
- 14
Scrub the motherboard with alcohol
5 minDip a soft-bristle toothbrush in 99% isopropyl alcohol and gently brush away all visible corrosion from the board and connectors.
- 15
Clean the daughterboard and port
4 minScrub the lower charging board and inside the USB-C port using 99% isopropyl alcohol to remove residue.
- 16
Air dry all components
15 minPlace the cleaned boards on a lint-free towel and allow them to dry completely for at least 30 minutes.
- 17
Reinstall boards and reconnect cables
5 minPlace the motherboard and daughterboard back into the chassis, reconnect all flex cables, and connect the battery last.
After your Motorola Moto G73 water damage repair
Power the Moto G73 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 G73 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 G73 repair context in the encyclopedia, or open related DIY guides.
