Phone · LG · G8 ThinQ
LG G8 ThinQ Charging Port Repair
Charging Port Repair guide for the LG G8 ThinQ
Before you begin
Tools
- Phillips #00 screwdriver
- Heat gun or hair dryer
- Suction cup tool
- Plastic prying tools
- Spudger tool
- Tweezers
- Soldering iron
- Desoldering braid
Parts / materials
- Replacement LG G8 USB-C charging port
- Solder
- Rosin flux
- Rear cover adhesive strips
- Isopropyl alcohol (99%)
Safety
- Wear eye protection when using a heat gun and soldering iron.
- Work in a well-ventilated area to avoid inhaling solder flux fumes.
- Disconnect the battery immediately after removing the midframe to prevent electrical shorts.
Overview
Step-by-step
- 1
Eject the SIM card tray
1 minInsert a SIM eject tool or paperclip into the hole next to the SIM tray on the right edge. Remove the SIM and microSD card tray completely.
- 2
Heat the rear glass edges
2 minUse a heat gun on low power or a hair dryer to warm the perimeter of the back glass for two minutes. This softens the factory adhesive underneath.
- 3
Attach the suction cup
2 minPress a heavy-duty suction cup onto the lower third of the rear glass. Pull upward gently to create a small gap between the glass and the body.
- 4
Slice the perimeter adhesive
4 minInsert a thin plastic opening pick into the gap created by the suction cup. Slide the pick around the perimeter to sever the adhesive bonds.
- 5
Pivot the rear glass open
2 minGently lift the right edge of the back glass like a book cover. Do not lift it completely off yet, as the fingerprint sensor cable is still connected.
- 6
Disconnect the fingerprint sensor cable
2 minUse a spudger to pop the fingerprint sensor press connector straight up off the motherboard. Lift away the back glass.
- 7
Unscrew the midframe and speaker cover
4 minUse a Phillips #00 screwdriver to remove all 14 screws securing the upper wireless charging assembly and lower speaker housing.
- 8
Remove the wireless charging midframe
2 minPry up the edges of the upper midframe and wireless charging coil using a spudger. Lift and set the midframe aside.
- 9
Remove the loudspeaker housing
2 minInsert a flat tool beneath the lower speaker module and pry it out of the chassis. Store it safely.
- 10
Disconnect the battery flex cable
1 minUse a plastic spudger to disconnect the battery flex connector from the motherboard. This cuts power to the phone during repair.
- 11
Disconnect the charging port interconnect flex
2 minUnplug the display and lower ribbon cable connectors from the sub-board using the pointed end of a spudger.
- 12
Unfasten and lift the daughterboard
3 minRemove any remaining daughterboard retention screws and carefully pry the charging port board out of the phone frame.
- 13
Apply flux to the USB-C port
2 minDispense a small amount of rosin flux onto the mounting legs and surface-mount pins of the damaged USB-C port.
- 14
Desolder the damaged USB-C port
5 minHeat the port's mounting pins with a soldering iron while applying gentle upward pressure with tweezers to free the port from the board.
- 15
Clean the solder pads
3 minLay desoldering braid over the contacts and press with the iron tip to absorb leftover solder. Wipe clean with isopropyl alcohol.
- 16
Position the new USB-C port
2 minAlign the fresh USB-C port's pins and structural legs with the corresponding solder pads on the daughterboard.
- 17
Solder the new charging port
6 minApply fresh solder to the anchor legs first to lock the port in place, then carefully solder each small data pin.
- 18
Reinstall the daughterboard
3 minPlace the daughterboard back into the chassis cavity and reconnect all interconnect ribbon cables securely.
- 19
Reconnect the battery and speaker
2 minPlug the battery connector back into the mainboard, then snap the lower loudspeaker housing into place.
- 20
Reattach the midframe and back cover
5 minReinstall the wireless charging midframe, tighten the 14 screws, reconnect the fingerprint flex, and seal the back glass with fresh adhesive.
After your LG G8 ThinQ charging port repair
Power the G8 ThinQ 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 LG G8 ThinQ job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more LG G8 ThinQ repair context in the encyclopedia, or open related DIY guides.

