Phone · Motorola · Moto E7
Motorola Moto E7 Water Damage Repair
Water Damage Repair guide for the Motorola Moto E7
Before you begin
Tools
- Precision Phillips PH00 screwdriver
- Plastic opening tools
- Plastic spudger
- SIM card eject tool
- Soft-bristle ESD brush
- Tweezers
- Anti-static wrist strap
- Magnifying visor
Parts / materials
- 99% Isopropyl alcohol
- Lint-free microfiber cloth
Safety
- Disconnect the battery immediately after opening the device to prevent severe short circuits.
- Wear an anti-static wrist strap to avoid damaging sensitive microelectronics with static electricity.
- Use 99% isopropyl alcohol in a well-ventilated area away from open flames.
Overview
Step-by-step
- 1
Power off the phone
1 minTurn off the Moto E7 immediately to prevent electrical shorts and do not connect it to a charger.
- 2
Remove the SIM card tray
1 minInsert a SIM eject tool into the hole on the left edge of the phone to pop out the SIM and microSD tray.
- 3
Unclip the rear plastic cover
4 minInsert a plastic opening tool into the seam above the SIM slot and slice around the perimeter to release the internal plastic clips.
- 4
Disconnect the fingerprint sensor flex cable
2 minSlightly lift the back cover and use a plastic spudger to detach the fingerprint reader connector from the motherboard.
- 5
Unscrew the upper motherboard bracket
3 minUse a Phillips PH00 screwdriver to remove the screws securing the top plastic motherboard shield.
- 6
Remove the upper bracket
2 minLift the plastic motherboard shield out of the phone frame using a spudger.
- 7
Disconnect the battery cable
1 minPry the battery press-connector straight up from the motherboard to isolate the power supply.
- 8
Unscrew the lower loudspeaker housing
3 minRemove the Phillips PH00 screws securing the speaker assembly at the bottom of the device.
- 9
Remove the loudspeaker housing
2 minPry up and remove the loudspeaker assembly to expose the lower charging sub-board.
- 10
Disconnect the interconnect flex cables
2 minUnplug the display flex cable and main interconnect ribbon cable from the motherboard and sub-board.
- 11
Extract the main motherboard
3 minUnclip the coaxial antenna cable and gently lift the motherboard out of the phone body.
- 12
Extract the bottom sub-board
2 minDisconnect the antenna cable from the sub-board and lift the USB port assembly out of the lower chassis.
- 13
Scrub circuit boards with alcohol
8 minSoak a soft-bristle ESD brush in 99% isopropyl alcohol and scrub away mineral deposits and corrosion from both boards.
- 14
Inspect boards for damage
5 minExamine all chip leads and solder joints under a magnifying visor to identify corroded or burnt components.
- 15
Dry all internal components
15 minPlace the cleaned motherboards on a lint-free microfiber cloth and allow them to air-dry completely.
After your Motorola Moto E7 water damage repair
Power the Moto E7 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 E7 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 E7 repair context in the encyclopedia, or open related DIY guides.
