LG V40 ThinQ Power/Volume Buttons Replacement
Before starting, ensure your LG V40 ThinQ is powered off and disconnected from any power source.
- Use a Jimmy tool to replace damaged or unresponsive power or volume buttons.
- This repair can restore button functionality.
Step 1 | Back Cover
Apply gentle heat to the back cover using an iOpener or hairdryer, moving it up and down the length of the phone.
- Continue heating until the back cover becomes hot enough for a Opening pick to be inserted between the cover and the phone body.
Step 2
Avoid applying excessive force that may crack the back glass.
- Insert the opening tool into a gap near the edge.
- Pry gently but firmly until the back cover separates from the adhesive.
Step 3
Careful removal is required to avoid damage.
- Disconnect the fingerprint sensor from the back camera lens cover.
Step 4
Remove back camera lens cover and fingerprint sensor using opening picks.
- Set them aside; you'll need the fingerprint sensor for a new back cover.
Step 5
Apply heat to the iOpener until warm.
Do not apply direct flame or excessive heat.
- Lay the iOpener over the old adhesive on the back cover.
- Gently rub with a cloth or cotton swab soaked in isopropyl alcohol.
Step 6
Apply new adhesive to areas with old adhesive residue.
- Clean the surface thoroughly before application.
- Avoid contact until the adhesive is fully dry.
Step 7 | Battery
Remove all 14 Phillips #000 screws that are 15mm long. They hold the wireless charging coil and loudspeaker module in place.
- The coils/speakers will need to be completely removed from the case once all of these screws are out.
- Be sure not to strip the screw heads during removal.
Step 8
Disconnect the battery press connector.
Step 9
Be cautious of damaging the battery during removal.
- Use opening picks to gently pry the battery loose from its adhesive.
- Pry slowly and carefully, taking time as needed, to avoid damage or ripping the battery.
Step 10 | Power/Volume Buttons
- Use opening picks to detach the motherboard cables.
- Remove the motherboard.
Step 11
Avoid damage by disconnecting flex cables from button sensors before using a Jimmy tool.
- Release the left flex cable.
- Remove the right flex cable.
Step 12
Be careful when using the Jimmy to avoid cutting yourself.
- Use the Jimmy to gently remove the power and volume buttons.
Step 13
- Remove the protective tape from the power button.
- Use the Angled ESD precision Tweezers to carefully remove the power button.
Step 14
Remove the tape covering the volume buttons.
- Use the Angled ESD precision Tweezers to carefully remove the volume buttons.