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LG G8 ThinQ Charging Port Repair

Charging Port Repair guide for the LG G8 ThinQ

Moderate
~55 min
20 steps

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

# LG G8 ThinQ Charging Port Repair Repair Guide Action-specific charging port repair walkthrough for the LG G8 ThinQ. About 55 minutes across 20 steps. This DIY guide walks through charging port repair on the LG G8 ThinQ (G Series series phone). Before you open the device, confirm the exact model number on the LG settings screen or rear housing so your replacement part matches the G8 ThinQ specifically—not a similar G Series sibling. Most DIY techs finish this LG G8 ThinQ charging port repair in about 55 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this LG G8 ThinQ job: Phillips #00 screwdriver, Heat gun or hair dryer, Suction cup tool, Plastic prying tools, Spudger tool, Tweezers, Soldering iron, Desoldering braid. Parts and supplies: Replacement LG G8 USB-C charging port, Solder, Rosin flux, Rear cover adhesive strips, Isopropyl alcohol (99%). Power the G8 ThinQ off completely, remove SIMs/SD cards if present, and work on a clean, well-lit surface with a magnetic mat for screws. If a step feels wrong for your LG G8 ThinQ, stop and compare the connector layout to the photos in this guide. When you prefer a same-day pro repair in Seattle instead, LML Repair can handle charging port repair for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Eject the SIM card tray

    1 min

    Insert 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. 2

    Heat the rear glass edges

    2 min

    Use 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. 3

    Attach the suction cup

    2 min

    Press 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. 4

    Slice the perimeter adhesive

    4 min

    Insert 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. 5

    Pivot the rear glass open

    2 min

    Gently 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. 6

    Disconnect the fingerprint sensor cable

    2 min

    Use a spudger to pop the fingerprint sensor press connector straight up off the motherboard. Lift away the back glass.

  7. 7

    Unscrew the midframe and speaker cover

    4 min

    Use a Phillips #00 screwdriver to remove all 14 screws securing the upper wireless charging assembly and lower speaker housing.

  8. 8

    Remove the wireless charging midframe

    2 min

    Pry up the edges of the upper midframe and wireless charging coil using a spudger. Lift and set the midframe aside.

  9. 9

    Remove the loudspeaker housing

    2 min

    Insert a flat tool beneath the lower speaker module and pry it out of the chassis. Store it safely.

  10. 10

    Disconnect the battery flex cable

    1 min

    Use a plastic spudger to disconnect the battery flex connector from the motherboard. This cuts power to the phone during repair.

  11. 11

    Disconnect the charging port interconnect flex

    2 min

    Unplug the display and lower ribbon cable connectors from the sub-board using the pointed end of a spudger.

  12. 12

    Unfasten and lift the daughterboard

    3 min

    Remove any remaining daughterboard retention screws and carefully pry the charging port board out of the phone frame.

  13. 13

    Apply flux to the USB-C port

    2 min

    Dispense a small amount of rosin flux onto the mounting legs and surface-mount pins of the damaged USB-C port.

  14. 14

    Desolder the damaged USB-C port

    5 min

    Heat the port's mounting pins with a soldering iron while applying gentle upward pressure with tweezers to free the port from the board.

  15. 15

    Clean the solder pads

    3 min

    Lay desoldering braid over the contacts and press with the iron tip to absorb leftover solder. Wipe clean with isopropyl alcohol.

  16. 16

    Position the new USB-C port

    2 min

    Align the fresh USB-C port's pins and structural legs with the corresponding solder pads on the daughterboard.

  17. 17

    Solder the new charging port

    6 min

    Apply fresh solder to the anchor legs first to lock the port in place, then carefully solder each small data pin.

  18. 18

    Reinstall the daughterboard

    3 min

    Place the daughterboard back into the chassis cavity and reconnect all interconnect ribbon cables securely.

  19. 19

    Reconnect the battery and speaker

    2 min

    Plug the battery connector back into the mainboard, then snap the lower loudspeaker housing into place.

  20. 20

    Reattach the midframe and back cover

    5 min

    Reinstall 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.

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