Phone · Motorola · G85
Motorola G85 Charging Port Repair
Charging Port Repair guide for the Motorola G85
Before you begin
Tools
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Phillips #000 screwdriver
- Spudger tool
- Tweezers
- SIM eject tool
Parts / materials
- Replacement charging port daughterboard
- Back cover adhesive strips
- Isopropyl alcohol (90%+)
Safety
- Wear safety glasses while heating and prying components.
- Avoid using sharp metal tools near the battery to prevent punctures.
- Ensure the phone is completely powered off before disconnecting internal boards.
Overview
Step-by-step
- 1
Power off the phone
1 minPress and hold the power button, then tap Power Off on the screen. Ensure the device is fully shut down before starting.
- 2
Eject the SIM tray
1 minInsert a SIM eject tool into the hole at the bottom frame next to the tray. Press firmly until the tray pops out, then remove it.
- 3
Heat the back cover
2 minApply a heat gun or hair dryer evenly along the outer edges of the back cover for two minutes to soften the adhesive.
- 4
Attach a suction cup
1 minPlace a suction cup on the lower section of the back panel near the charging port. Pull upward gently to create a tiny gap.
- 5
Insert an opening pick
1 minInsert a thin plastic opening pick into the gap created between the rear cover and the frame.
- 6
Slice the perimeter adhesive
3 minSlide the plastic pick along all four edges to slice through the adhesive holding the back panel. Reapply heat if resistance increases.
- 7
Lift away the back panel
1 minCarefully separate the back cover from the frame and set it aside safely on your work mat.
- 8
Unscrew the speaker housing
2 minUse a Phillips #000 screwdriver to remove the screws securing the lower speaker enclosure over the daughterboard.
- 9
Pry out the speaker housing
1 minInsert the flat end of a spudger under the speaker module and gently lift it out of the chassis.
- 10
Disconnect the main flex cable
1 minUse a spudger to pry the main interconnect flex cable straight up from its socket on the charging daughterboard.
- 11
Disconnect the antenna cable
1 minUse precision tweezers to lift the coaxial antenna cable head straight up off its board connector.
- 12
Remove the board retaining screw
1 minRemove the single Phillips screw securing the USB-C daughterboard to the inner frame.
- 13
Remove the old charging board
1 minPry underneath the edge of the charging daughterboard with a spudger and remove it from the device.
- 14
Place the new charging board
1 minPosition the replacement daughterboard into the lower housing, aligning the USB-C port with the frame cutout.
- 15
Secure the board screw
1 minReinstall and tighten the Phillips screw holding the new daughterboard to the frame.
- 16
Reconnect the antenna cable
1 minAlign the coaxial antenna head over its connector socket on the new board and press down gently until it snaps in place.
- 17
Reconnect the main flex cable
1 minPress the main interconnect flex cable connector straight down onto the board header until it clicks.
- 18
Position the speaker housing
1 minSet the lower speaker module back into place over the daughterboard assembly.
- 19
Fasten the speaker screws
2 minInsert and tighten all Phillips screws to secure the speaker housing to the phone frame.
- 20
Clean old adhesive residue
2 minClean remaining adhesive off the frame edges using isopropyl alcohol and a lint-free cloth.
- 21
Apply new adhesive strips
2 minApply custom cut adhesive tape along the perimeter frame where the back cover sits.
- 22
Reattach the back cover
2 minAlign the back cover with the frame and press firmly along the perimeter to secure the adhesive bond.
- 23
Reinsert the SIM tray
1 minSlide the SIM card tray back into its slot on the bottom of the phone until flush with the frame.
After your Motorola G85 charging port repair
Power the G85 back on and test the charging port 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 G85 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 G85 repair context in the encyclopedia, or open related DIY guides.

