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Introduction

If your LG V40 ThinQ’s power or volume buttons are damaged or unresponsive, use this guide to replace them. This can help restore the functionality of your buttons.

This guide requires the use of a Jimmy tool. Follow each step closely and make sure to power off your device before starting and disconnecting from any external power source.

What you need

Step 1 Back Cover

LG V40 ThinQ Power/Volume Buttons Replacement, Back Cover: step 1, image 1 of 2

LG V40 ThinQ Power/Volume Buttons Replacement, Back Cover: step 1, image 2 of 2

Use an iOpener or hairdryer to heat the adhesive on the back cover by rolling it up and down the back of the phone.
You will know when the back is hot enough when an Opening pick is able to slide under the back cover.

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Step 2

LG V40 ThinQ Power/Volume Buttons Replacement: step 2, image 3 of 3

Use opening to pry the back cover away from the adhesive.
This can take some time. Be patient and go slowly.
We recommend you move slowly and carefully to not crack the back glass.

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Step 3

Carefully disconnect the fingerprint sensor from the back camera lens cover.

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Step 4

LG V40 ThinQ Power/Volume Buttons Replacement: step 4, image 3 of 3

Use the opening picks again to gently remove the back camera lens cover and fingerprint sensor off from the back cover.
Set the fingerprint sensor and camera cover aside. You will need the fingerprint sensor to put into any new back cover bought for the phone.

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Step 5

Clean the back cover of any old adhesive by gently heating the area with the iOpener to soften the adhesive.
Use a cloth or cotton swab soaked in isopropyl alcohol to gently rub and dissolve the glue.

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Step 6

Apply new adhesive on the back cover in the places where the old adhesive was applied.

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Step 7 Battery

LG V40 ThinQ Power/Volume Buttons Replacement, Battery: step 7, image 1 of 2

LG V40 ThinQ Power/Volume Buttons Replacement, Battery: step 7, image 2 of 2

Remove the fourteen 15 mm-long Phillips #000 screws holding down the wireless charging coil and loudspeaker module.

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Step 8

Disconnect the battery press connector.

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Step 9

With the opening picks, very gently insert and pry the battery slowly until it comes free from the adhesive and remove it.
This can take some time to safely remove the battery without damaging it. Be careful not to rip the battery from the adhesive holding it down.

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