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Introduzione

Follow this guide to remove and replace a defective fingerprint sensor for the Pixel 3.

  1. Heat an iOpener and apply it to the bottom of the phone for one minute. When prying above the power button, be careful not to insert the pick too deeply, or you will damage the fingerprint sensor cable.
    • Heat an iOpener and apply it to the bottom of the phone for one minute.

    • When prying above the power button, be careful not to insert the pick too deeply, or you will damage the fingerprint sensor cable.

  2. Apply a suction cup to the heated bottom edge of the phone. If your back cover is badly cracked, covering it with a layer of clear packing tape may allow the suction cup to adhere. Lift on the suction cup with strong, steady force to create a gap.
    • Apply a suction cup to the heated bottom edge of the phone.

    • If your back cover is badly cracked, covering it with a layer of clear packing tape may allow the suction cup to adhere.

    • Lift on the suction cup with strong, steady force to create a gap.

    • Depending on how aged your phone is, this may take significant force. If you are having trouble, apply more heat and try again.

    • Insert an opening pick into the gap.

  3. Slice the adhesive along the bottom edge of the phone and around the right corner. Leave a pick in the bottom edge to prevent the adhesive from re-sealing. Leave a pick in the bottom edge to prevent the adhesive from re-sealing.
    • Slice the adhesive along the bottom edge of the phone and around the right corner.

    • Leave a pick in the bottom edge to prevent the adhesive from re-sealing.

  4. Heat the right edge with an iOpener and continue slicing the adhesive with an opening pick. The adhesive can be very gummy. Push the pick in and out in a sawing motion to help with slicing. The adhesive can be very gummy. Push the pick in and out in a sawing motion to help with slicing.
    • Heat the right edge with an iOpener and continue slicing the adhesive with an opening pick.

    • The adhesive can be very gummy. Push the pick in and out in a sawing motion to help with slicing.

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  6. Continue heating and slicing through the rest of the phone perimeter. Leave a pick in each edge to prevent the adhesive from resealing. When slicing above the power button, do not insert the pick more than halfway in to avoid damaging the fingerprint sensor cable. When slicing above the power button, do not insert the pick more than halfway in to avoid damaging the fingerprint sensor cable.
    • Continue heating and slicing through the rest of the phone perimeter. Leave a pick in each edge to prevent the adhesive from resealing.

    • When slicing above the power button, do not insert the pick more than halfway in to avoid damaging the fingerprint sensor cable.

  7. Once you have sliced around the perimeter of the phone, carefully lift the left edge of the back cover. Do not attempt to remove the back cover. It is still attached to the phone by the fingerprint sensor cable. Flip the back cover along its long axis and rest it so that the fingerprint sensor cable is not strained.
    • Once you have sliced around the perimeter of the phone, carefully lift the left edge of the back cover.

    • Do not attempt to remove the back cover. It is still attached to the phone by the fingerprint sensor cable.

    • Flip the back cover along its long axis and rest it so that the fingerprint sensor cable is not strained.

  8. Remove the two 4.1 mm long Phillips screws securing the fingerprint connector bracket.
    • Remove the two 4.1 mm long Phillips screws securing the fingerprint connector bracket.

    • During reassembly, be careful not to over-tighten these screws, or you may damage your display.

  9. Use the point of a spudger to slide the fingerprint connector bracket out from under the NFC coil. Remove the fingerprint connector bracket. Remove the fingerprint connector bracket.
    • Use the point of a spudger to slide the fingerprint connector bracket out from under the NFC coil.

    • Remove the fingerprint connector bracket.

  10. Use the point of a spudger to pry up and disconnect the fingerprint connector from its socket. When you disconnect connectors like these, be careful not to dislodge the small surface-mounted components surrounding the socket.
    • Use the point of a spudger to pry up and disconnect the fingerprint connector from its socket.

    • When you disconnect connectors like these, be careful not to dislodge the small surface-mounted components surrounding the socket.

    • To re-attach press connectors like this one, carefully align and press down on one side until it clicks into place, then repeat on the other side. Do not press down on the middle. If the connector is misaligned, the pins can bend, causing permanent damage.

  11. Remove the back cover. Before you install a replacement back cover, be sure to remove all adhesive residue from the phone frame. Use an opening tool to scrape and high concentration isopropyl alcohol to clean the surface. If you are re-using the back cover, be sure to clean off any adhesive, and apply new back cover adhesive.
    • Remove the back cover.

    • Before you install a replacement back cover, be sure to remove all adhesive residue from the phone frame. Use an opening tool to scrape and high concentration isopropyl alcohol to clean the surface.

    • If you are re-using the back cover, be sure to clean off any adhesive, and apply new back cover adhesive.

    • If you are installing a replacement back cover, be sure compare it with the original part. Transfer any remaining parts (such as the flash diffuser) over to your replacement part.

  12. Heat an iOpener and apply it to the back side of the fingerprint sensor for a minute, to loosen the adhesive holding it in place. Insert the edge of an opening tool underneath the fingerprint sensor's lip, and pry up to loosen the sensor from the back cover. Insert the edge of an opening tool underneath the fingerprint sensor's lip, and pry up to loosen the sensor from the back cover.
    • Heat an iOpener and apply it to the back side of the fingerprint sensor for a minute, to loosen the adhesive holding it in place.

    • Insert the edge of an opening tool underneath the fingerprint sensor's lip, and pry up to loosen the sensor from the back cover.

  13. Remove the fingerprint sensor.
    • Remove the fingerprint sensor.

    • Use custom pre-cut adhesive or double-sided tape such as Tesa tape to re-adhere the fingerprint sensor onto the back cover.

Conclusione

To reassemble your device, follow these instructions in reverse order.

Repair didn’t go as planned? Check out our Google Pixel 3 Answers community for troubleshooting help.

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Arthur Shi

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