Phone · LG · V40 ThinQ
LG V40 ThinQ Battery Replacement
Battery Replacement guide for the LG V40 ThinQ
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
Step-by-step
- 1
Eject the SIM Tray
1 minInsert a SIM eject tool into the hole at the right side of the device. Push firmly to eject the tray and remove it.
- 2
Heat the Rear Glass
3 minUse 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
Attach the Suction Cup
1 minPress a suction cup firmly onto the lower portion of the rear glass cover. Ensure a tight seal near the bottom edge.
- 4
Insert an Opening Pick
2 minPull up on the suction handle to create a small gap at the bottom seam. Insert a plastic opening pick into the gap.
- 5
Slice Bottom Adhesive
2 minSlide 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
Slice Side Adhesive
3 minInsert 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
Slice Top Adhesive
2 minGuide an opening pick around the top edge of the back cover. Be careful around the camera housing area.
- 8
Remove the Rear Glass
1 minLift the rear glass cover straight off the chassis. Set it aside on a clean work surface.
- 9
Unscrew the Upper Midframe
3 minUse a Phillips #00 screwdriver to remove the 10 screws securing the upper midframe and wireless charging assembly.
- 10
Remove Wireless Charging Module
2 minInsert a spudger under the top edge of the wireless charging frame. Pry upward gently to release the clips and remove the frame.
- 11
Disconnect the Battery
1 minUse the flat end of a spudger to pry the battery connector straight up from its motherboard socket. This prevents short circuits while working.
- 12
Unscrew the Loudspeaker
2 minRemove the 5 Phillips screws securing the lower loudspeaker housing to the frame.
- 13
Remove the Loudspeaker Assembly
2 minPry up the loudspeaker module using a spudger and lift it out of the device.
- 14
Apply Battery Adhesive Remover
2 minApply 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
Pry Up the Battery
3 minInsert a plastic card or flat spudger under the bottom edge of the battery. Pry upward slowly and steadily to release the adhesive underneath.
- 16
Remove the Old Battery
1 minLift the battery out of the chassis once the adhesive breaks free. Safely set aside the old battery for recycling.
- 17
Clean the Battery Well
2 minUse a lint-free cloth dampened with isopropyl alcohol to remove leftover adhesive residue from the frame.
- 18
Apply New Battery Adhesive
2 minPeel the backing from new battery adhesive strips and lay them flat inside the battery well.
- 19
Install the New Battery
1 minAlign the replacement battery in the housing and press it down firmly onto the adhesive.
- 20
Reconnect the Battery Cable
1 minAlign the battery press connector over its motherboard socket and press straight down until it snaps into place.
- 21
Reinstall the Loudspeaker
2 minPlace the loudspeaker assembly into the lower frame. Secure it with the 5 Phillips screws removed earlier.
- 22
Reinstall the Midframe
3 minPosition the wireless charging midframe over the motherboard. Press along the edges to clip it into place, then secure it with 10 Phillips screws.
- 23
Apply Rear Glass Adhesive
3 minClean old adhesive off the rear panel, then apply a pre-cut replacement adhesive gasket to the perimeter of the phone frame.
- 24
Attach Rear Glass
2 minAlign the rear glass panel over the frame and press firmly around all edges to seal the phone.
- 25
Reinsert the SIM Tray
1 minSlide 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.

