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LG G6 Fingerprint Sensor Replacement

Introduction

Use this guide to replace the fingerprint sensor on your LG G6.

If your replacement part does not come with adhesive mounted on it, you will also need to purchase adhesive for the fingerprint sensor. You can buy pre-cut adhesive, or thin high-bond tape.

What you need

  1. LG G6 Fingerprint Sensor Replacement, iOpener Heating: step 1, image 1 of 2 LG G6 Fingerprint Sensor Replacement, iOpener Heating: step 1, image 2 of 2

    • We recommend that you clean your microwave before proceeding, as any nasty gunk on the bottom may end up stuck to the iOpener.

    • Place the iOpener in the center of the microwave.

    • For carousel microwaves: Make sure the plate spins freely. If your iOpener gets stuck, it may overheat and burn.

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  2. LG G6 Fingerprint Sensor Replacement: step 2, image 1 of 1

    • Heat the iOpener for thirty seconds.

    • Throughout the repair procedure, as the iOpener cools, reheat it in the microwave for an additional thirty seconds at a time.

    • Be careful not to overheat the iOpener during the repair. Overheating may cause the iOpener to burst.

    • Never touch the iOpener if it appears swollen.

    • If the iOpener is still too hot in the middle to touch, continue using it while waiting for it to cool down some more before reheating. A properly heated iOpener should stay warm for up to 10 minutes.

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  3. LG G6 Fingerprint Sensor Replacement: step 3, image 1 of 1

    • Remove the iOpener from the microwave, holding it by one of the two flat ends to avoid the hot center.

    • The iOpener will be very hot, so be careful when handling it. Use an oven mitt if necessary.

    Edit

  4. LG G6 Fingerprint Sensor Replacement, Alternate iOpener heating method: step 4, image 1 of 2 LG G6 Fingerprint Sensor Replacement, Alternate iOpener heating method: step 4, image 2 of 2

    • If you don't have a microwave, follow this step to heat your iOpener in boiling water.

    • Fill a pot or pan with enough water to fully submerge an iOpener.

    • Heat the water to a boil. Turn off the heat.

    • Place an iOpener into the hot water for 2-3 minutes. Make sure the iOpener is fully submerged in the water.

    • Use tongs to extract the heated iOpener from the hot water.

    • Thoroughly dry the iOpener with a towel.

    • The iOpener will be very hot, so be careful to hold it only by the end tabs.

    • Your iOpener is ready for use! If you need to reheat the iOpener, heat the water to a boil, turn off the heat, and place the iOpener in the water for 2-3 minutes.

    Edit

  5. LG G6 Fingerprint Sensor Replacement, Fingerprint Sensor: step 5, image 1 of 1

    • Apply a heated iOpener to a long edge of the phone for about 2 minutes.

    • You may need to reheat and reapply the iOpener several times to get the phone warm enough. Follow the iOpener instructions to avoid overheating.

    Edit

  7. LG G6 Fingerprint Sensor Replacement: step 6, image 1 of 2 LG G6 Fingerprint Sensor Replacement: step 6, image 2 of 2

    • In the following steps you will be cutting through the adhesive on the rear glass panel.

    • Take note of the following areas:

    • In addition to cutting around the edge, there is extra adhesive here that should be cut.

    • Avoid sticking the spudger blade in too far here, to avoid damaging the rear button ribbon cable and chip.

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  8. LG G6 Fingerprint Sensor Replacement: step 7, image 1 of 1

    • Once the back panel is warm to the touch, apply a suction cup as close to the heated edge of the phone as you can.

    • The suction cup will not make a good seal on the curved portion of the glass, so avoid putting it on the very edge.

    • Lift on the suction cup, and insert a halberd spudger or opening pick under the rear glass.

    Edit

  9. LG G6 Fingerprint Sensor Replacement: step 8, image 1 of 1

    • Once you have the tool firmly inserted into the glass, reheat and reapply the iOpener to soften the adhesive.

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  10. LG G6 Fingerprint Sensor Replacement: step 9, image 1 of 2 LG G6 Fingerprint Sensor Replacement: step 9, image 2 of 2

    • Slide the blade of a Halberd spudger along the side of the phone, separating the adhesive.

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  11. LG G6 Fingerprint Sensor Replacement: step 10, image 1 of 3 LG G6 Fingerprint Sensor Replacement: step 10, image 2 of 3 LG G6 Fingerprint Sensor Replacement: step 10, image 3 of 3

    • Repeat the previous heating and cutting procedure for the remaining three sides of the phone.

    • Leave an opening pick on each side as you continue to the next to prevent the adhesive from resealing.

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  12. LG G6 Fingerprint Sensor Replacement: step 11, image 1 of 2 LG G6 Fingerprint Sensor Replacement: step 11, image 2 of 2

    • Use the opening picks to slice through any remaining adhesive and open the phone.

    • Remove the glass from the phone.

    • During reassembly, apply new adhesive or high-bond tape if your replacement rear glass does not come with any.

    Edit

  13. LG G6 Fingerprint Sensor Replacement: step 12, image 1 of 3 LG G6 Fingerprint Sensor Replacement: step 12, image 2 of 3 LG G6 Fingerprint Sensor Replacement: step 12, image 3 of 3

    • Slide the blade of a halberd spudger into the opening on the edge of the rear button bracket.

    • Careful not to push directly against the rear button ribbon cable, to avoid damaging it.

    • Do not push the spudger in too far, to avoid damaging the rear button.

    • Continue sliding the spudger blade around the bracket to cut all the adhesive holding the bracket to the rear case.

    • Remove the bracket.

    Edit

  14. LG G6 Fingerprint Sensor Replacement: step 13, image 1 of 3 LG G6 Fingerprint Sensor Replacement: step 13, image 2 of 3 LG G6 Fingerprint Sensor Replacement: step 13, image 3 of 3

    • Slide an opening pick between the rear button membrane and the rear case.

    • Slide the pick around the edge of the membrane to separate it from the rear case.

    • This might take some force, as the adhesive holding the membrane to the case is tenacious. Pry slowly, to avoid puncturing or stretching the membrane.

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  15. LG G6 Fingerprint Sensor Replacement: step 14, image 1 of 1

    • Use the blade of a halberd spudger to pry the rear button chip off of the rear case.

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  16. LG G6 Fingerprint Sensor Replacement: step 15, image 1 of 3 LG G6 Fingerprint Sensor Replacement: step 15, image 2 of 3 LG G6 Fingerprint Sensor Replacement: step 15, image 3 of 3

    • Use an opening pick to pry the contact pad off of the rear case.

    • Remove the rear button assembly.

    Edit
Conclusion

Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.

To reassemble your device, follow the above steps in reverse order.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Check out our Answers community for troubleshooting help.

29 other people completed this guide.

Author

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Adam O'Camb

Member since: 04/11/15

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One Comment

Spend the extra couple $s to get well sourced products.

For the LG G6, chuck any adhesive for the rear glass provided in the garbage. It'll be too thick, use ifixit Tesa 61395 tape to make yer own seal.

The fingerprint sensor is very sensitive to these small clearances. I put a piece of Tesa 61395 between the plastic lense cover and contact plate for sensor.

Now I've got a great seal and perfectly working sensor. Thanks ifixit!

Victor Rockman - Reply

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