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LG V40 ThinQ Battery Replacement

Battery Replacement guide for the LG V40 ThinQ

Moderate
~48 min
25 steps

Before you begin

Tools

  • Heat gun or hair dryer
  • Suction handle
  • Opening picks
  • Phillips #00 screwdriver
  • Spudger
  • Plastic card
  • Tweezers
  • SIM eject tool

Parts / materials

  • Replacement battery for LG V40 ThinQ
  • Rear glass replacement adhesive
  • Battery adhesive strips
  • 99% Isopropyl alcohol

Safety

  • Power down the phone completely before beginning disassembly.
  • Wear eye protection when heating and prying glass components.
  • Do not puncture or bend the Li-ion battery during removal.
  • Work in a well-ventilated area when using isopropyl alcohol or adhesive removers.

Overview

# LG V40 ThinQ Battery Replacement Repair Guide Action-specific battery replacement walkthrough for the LG V40 ThinQ. About 48 minutes across 25 steps. This DIY guide walks through battery replacement on the LG V40 ThinQ (V 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 V40 ThinQ specifically—not a similar V Series sibling. Most DIY techs finish this LG V40 ThinQ battery replacement in about 48 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this LG V40 ThinQ job: Heat gun or hair dryer, Suction handle, Opening picks, Phillips #00 screwdriver, Spudger, Plastic card, Tweezers, SIM eject tool. Parts and supplies: Replacement battery for LG V40 ThinQ, Rear glass replacement adhesive, Battery adhesive strips, 99% Isopropyl alcohol. Power the V40 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 V40 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 battery replacement for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Eject the SIM Tray

    1 min

    Insert a SIM eject tool into the hole at the right side of the device. Push firmly to eject the tray and remove it.

  2. 2

    Heat the Rear Glass

    3 min

    Use a heat gun or hair dryer to warm the outer edges of the rear glass for 2-3 minutes. This softens the factory adhesive holding the panel.

  3. 3

    Attach the Suction Cup

    1 min

    Press a suction cup firmly onto the lower portion of the rear glass cover. Ensure a tight seal near the bottom edge.

  4. 4

    Insert an Opening Pick

    2 min

    Pull up on the suction handle to create a small gap at the bottom seam. Insert a plastic opening pick into the gap.

  5. 5

    Slice Bottom Adhesive

    2 min

    Slide the opening pick back and forth along the bottom edge to slice through the adhesive. Leave the pick in place to prevent re-sealing.

  6. 6

    Slice Side Adhesive

    3 min

    Insert a second opening pick and slide it along the left edge of the phone to cut the glue. Repeat this process for the right side.

  7. 7

    Slice Top Adhesive

    2 min

    Guide an opening pick around the top edge of the back cover. Be careful around the camera housing area.

  8. 8

    Remove the Rear Glass

    1 min

    Lift the rear glass cover straight off the chassis. Set it aside on a clean work surface.

  9. 9

    Unscrew the Upper Midframe

    3 min

    Use a Phillips #00 screwdriver to remove the 10 screws securing the upper midframe and wireless charging assembly.

  10. 10

    Remove Wireless Charging Module

    2 min

    Insert a spudger under the top edge of the wireless charging frame. Pry upward gently to release the clips and remove the frame.

  11. 11

    Disconnect the Battery

    1 min

    Use the flat end of a spudger to pry the battery connector straight up from its motherboard socket. This prevents short circuits while working.

  12. 12

    Unscrew the Loudspeaker

    2 min

    Remove the 5 Phillips screws securing the lower loudspeaker housing to the frame.

  13. 13

    Remove the Loudspeaker Assembly

    2 min

    Pry up the loudspeaker module using a spudger and lift it out of the device.

  14. 14

    Apply Battery Adhesive Remover

    2 min

    Apply a few drops of isopropyl alcohol or adhesive remover along the edges of the battery. Allow it to sit for 2 minutes to dissolve the glue.

  15. 15

    Pry Up the Battery

    3 min

    Insert a plastic card or flat spudger under the bottom edge of the battery. Pry upward slowly and steadily to release the adhesive underneath.

  16. 16

    Remove the Old Battery

    1 min

    Lift the battery out of the chassis once the adhesive breaks free. Safely set aside the old battery for recycling.

  17. 17

    Clean the Battery Well

    2 min

    Use a lint-free cloth dampened with isopropyl alcohol to remove leftover adhesive residue from the frame.

  18. 18

    Apply New Battery Adhesive

    2 min

    Peel the backing from new battery adhesive strips and lay them flat inside the battery well.

  19. 19

    Install the New Battery

    1 min

    Align the replacement battery in the housing and press it down firmly onto the adhesive.

  20. 20

    Reconnect the Battery Cable

    1 min

    Align the battery press connector over its motherboard socket and press straight down until it snaps into place.

  21. 21

    Reinstall the Loudspeaker

    2 min

    Place the loudspeaker assembly into the lower frame. Secure it with the 5 Phillips screws removed earlier.

  22. 22

    Reinstall the Midframe

    3 min

    Position the wireless charging midframe over the motherboard. Press along the edges to clip it into place, then secure it with 10 Phillips screws.

  23. 23

    Apply Rear Glass Adhesive

    3 min

    Clean old adhesive off the rear panel, then apply a pre-cut replacement adhesive gasket to the perimeter of the phone frame.

  24. 24

    Attach Rear Glass

    2 min

    Align the rear glass panel over the frame and press firmly around all edges to seal the phone.

  25. 25

    Reinsert the SIM Tray

    1 min

    Slide the SIM card tray back into its slot on the right side of the device until flush.

After your LG V40 ThinQ battery replacement

Power the V40 ThinQ back on and test the battery replacement 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 V40 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 V40 ThinQ repair context in the encyclopedia, or open related DIY guides.

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