LG G6 - Replace the fingerprint sensor

Your fingerprint sensor / standby button isn't working.

  • G6
  • 5 Steps
  • Easy
  • 30 min.
Go to the guide

Introduction

This repair guide shows you how to replace the fingerprint sensor of your LG G6. This fix is necessary, if your LG G6 no longer recognizes your fingerprints or your on/off button no longer works.

Required tools

  • Flache Plektren

    Flache Plektren

    You need a very flat tool such as a flat pick to pry out parts that are glued in place.

    €1.00 at the iDoc store
  • iFlex opening tool

    iFlex opening tool

    Die kleinen Teile in deinem Smartphone auseinanderzukriegen kann eine sehr große Arbeit bedeuten. Die Klinge des kompakten aber stabilen iFlex hat eine Dicke von nur 0,15 mm, sodass es auch in den kleinsten Spalten reinpasst, beispielsweise zwischen dem Display und dem Rahmen oder unter dem Logicboard. Das praktische iFlex ist aus hochwertigem rostfreiem Stahl und liegt gut in der Hand. Damit ist es der perfekte Helfer bei jeder Smartphone-Reparatur.

    €9.00 at the iDoc store
  • Steel Laboratory Spatula

    Steel Laboratory Spatula

    You need a flat and sturdy prying tool to disconnect glued parts.

    €9.00 at the iDoc store
Show all replacement parts for the G6 

Replacement parts and tools for this repair

Our tools plus the right spare part help you fix your device easily.

iFlex opening tool

Die kleinen Teile in deinem Smartphone auseinanderzukriegen kann eine sehr große Arbeit bedeuten. Die Klinge des kompakten aber...

for €9.00

Getting started

If you get stuck or have questions, you can post a comment for each step. We’d be happy to help.

5 steps
  1. Switch off the device

    G6 - Switch off the device 01
    G6 - Switch off the device 02
    G6 - Switch off the device 03
    1. Turn off your device by holding down the power button on the back until the “Power off” option appears.
    2. Tap to confirm and wait until the screen goes black.
  2. Remove back cover

    G6 - Remove back cover 01
    G6 - Remove back cover 02
    G6 - Remove back cover 03
    G6 - Remove back cover 04
    G6 - Remove back cover 05
    G6 - Remove back cover 06
    G6 - Remove back cover 07

    To loosen the back cover, use a heat gun or an ordinary hair dryer. Warm glue is easier to loosen, allowing you to remove the back cover.

    The easiest way to loosen the back cover is to use a flat and flexible tool such as the iFlex.

    We also recommend inserting flat picks to prevent the glue from sticking again.

    1. Heat the entire rear glass. It's glued all around the edges and around the home button and over the USB port.
    2. Insert the iFlex between the rear glass and the frame, but not more than 5 mm.

    Be extra careful, the back cover can break very easily. Don't pry with the tool, but only slide it around the edges. If necessary, apply the heat several times and try again. Removing the back cover might take a while. Take a little more time and work carefully to make sure you don't break anything.

    1. Once the rear glass comes off in one place, insert a pick into the gap to keep it open.
    2. Then run the iFlexit around all the edges to gradually loosen the glue.
    3. The rear glass has extra glue around the home button and over the USB port. Here you need to insert the iFlexit a little deeper. But not to far, or you could damage parts on the home button.
    4. Once the rear glass is unglued, you can lift it off. There's not cable attached.
  3. Remove fingerprint sensor

    G6 - Remove fingerprint sensor 01
    G6 - Remove fingerprint sensor 02
    G6 - Remove fingerprint sensor 03
    G6 - Remove fingerprint sensor 04
    G6 - Remove fingerprint sensor 05
    G6 - Remove fingerprint sensor 06

    If you only replace the rear glass, check your spare part first. It may already come with a fingerprint sensor. Then you can skip this step.

    1. Heat the fingerprint sensor / standby button in the rear glass to soften the glue.
    2. Then use a flat tool to release the sensor's flex cable.
    3. The work the tool all around the sensor to separate it from the rear glass. Then take out the sensor.
  4. Insert fingerprint sensor

    G6 - Insert fingerprint sensor 01
    G6 - Insert fingerprint sensor 02
    G6 - Insert fingerprint sensor 03

    Place the sensor into the opening in the rear glass.

    Position the flex cable. The two holes in the cable fit on the two pins in the rear glass.

    Then press on to attach the sensor and flex cable. If necessary, use hot air to soften the glue.

  5. Attach rear glass

    G6 - Attach rear glass 01
    G6 - Attach rear glass 02
    1. Place the rear glass back on the device and press it on.

    You can heat the rear glass again to make the glue stick better.

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