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소개

This guide shows how to remove and replace the fingerprint sensor for your Pixel 3 XL.

  1. Heat an iOpener and apply it to the right edge of the back panel for a minute. A hair dryer, heat gun, or hot plate may also be used, but be careful not to overheat the phone—the display and internal battery are both susceptible to heat damage. While you wait, note the following areas on the back panel:
    • Heat an iOpener and apply it to the right edge of the back panel for a minute.

    • A hair dryer, heat gun, or hot plate may also be used, but be careful not to overheat the phone—the display and internal battery are both susceptible to heat damage.

    • While you wait, note the following areas on the back panel:

    • Strong adhesive—there are large patches of adhesive near the bottom of the phone.

    • Fingerprint sensor cable—be careful not to slice through the cable as you pry

  2. Apply a suction cup to the heated edge of the back panel, as close to the edge as possible. Pull up on the suction cup with strong, steady force to create a gap. Depending on the age of your phone, this may be difficult. If you are having trouble, apply heat to the edge and try again.
    • Apply a suction cup to the heated edge of the back panel, as close to the edge as possible.

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

    • Depending on the age of your phone, this may be difficult. If you are having trouble, apply heat to the edge and try again.

    • Insert the point of an opening pick into the gap.

    Suction cup doesn’t work on severely cracked glass.

    Jeffrey Kongthong - 답글

    Step 1 - 2 took me about 50 minutes. Back and forth with heat and trying with suction cup. I could get my finger nail in but not the pick. Took two people, but we finally got a pick in. 2 year old phone.

    Andrew Messier - 답글

    Took about 15 minutes and three total attempts. On the third attempt, I also used a thinner, metal, pick to widen the gap just enough for the plastic pick to fit (Though be careful as you can easily break it with a metal pick). The phone is three years old.

    Hotohori - 답글

    Could not get in with the pick or in from the side. Targeted the bottom of the phone with the iOpener and managed to gently create some space for the pick with the opener tool.

    Daniel R. - 답글

  3. Slide the opening pick along the right edge to slice through the adhesive. The adhesive gums up and becomes hard to slice once it cools. If that happens, re-apply heat to the edge to make slicing easier. Once you have sliced through the edge, leave an opening pick in the seam to prevent the adhesive from re-sealing.
    • Slide the opening pick along the right edge to slice through the adhesive.

    • The adhesive gums up and becomes hard to slice once it cools. If that happens, re-apply heat to the edge to make slicing easier.

    • Once you have sliced through the edge, leave an opening pick in the seam to prevent the adhesive from re-sealing.

  4. Apply a heated iOpener to the bottom of the back panel for a minute.
    • Apply a heated iOpener to the bottom of the back panel for a minute.

  5. Use an opening pick to slice around the bottom right corner and continue along the bottom edge of the phone. Work slowly as you slice around the corner to prevent the panel from cracking. If the slicing becomes hard, re-apply heat. Leave a pick in the edge to prevent the adhesive from re-sealing.
    • Use an opening pick to slice around the bottom right corner and continue along the bottom edge of the phone.

    • Work slowly as you slice around the corner to prevent the panel from cracking. If the slicing becomes hard, re-apply heat.

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

  6. Continue heating and slicing the remaining edges of the phone. Be careful as you slice along the left edge of the phone. If your pick feels like it's stuck near the top, you may have snagged the fingerprint sensor. Retract the pick out of the seam slightly and try again. Be sure to cut through the thick portions of adhesive near the bottom and right edge of the phone.
    • Continue heating and slicing the remaining edges of the phone.

    • Be careful as you slice along the left edge of the phone. If your pick feels like it's stuck near the top, you may have snagged the fingerprint sensor. Retract the pick out of the seam slightly and try again.

    • Be sure to cut through the thick portions of adhesive near the bottom and right edge of the phone.

  7. Gently pry up the right edge of the back panel.
    • Gently pry up the right edge of the back panel.

    • Use an opening pick to slice through any remaining adhesive along the edges.

  8. Swing the right edge of the back panel upwards and rest the flipped panel along the left side of the phone. Be sure to maintain slack on the fingerprint sensor cable and prevent it from being pinched. During reassembly, this is a good point to power on your phone and test all functions before sealing it up. Be sure to power your phone back down completely before you continue working.
    • Swing the right edge of the back panel upwards and rest the flipped panel along the left side of the phone.

    • Be sure to maintain slack on the fingerprint sensor cable and prevent it from being pinched.

    • During reassembly, this is a good point to power on your phone and test all functions before sealing it up. Be sure to power your phone back down completely before you continue working.

    • During reassembly, follow this guide to install custom-cut adhesives for your back panel.

  9. User tweezers to carefully peel up and remove the yellow tape over the fingerprint sensor connector.
    • User tweezers to carefully peel up and remove the yellow tape over the fingerprint sensor connector.

  10. Use the point of a spudger to carefully flip up the black lock bar on the fingerprint sensor's ZIF socket. Grasp the cable's tab with your fingers or tweezers and gently walk the flex cable out of the socket. To prevent shorting, be careful not to touch the metal contacts on the flex cable with your tweezers.
    • Use the point of a spudger to carefully flip up the black lock bar on the fingerprint sensor's ZIF socket.

    • Grasp the cable's tab with your fingers or tweezers and gently walk the flex cable out of the socket.

    • To prevent shorting, be careful not to touch the metal contacts on the flex cable with your tweezers.

  11. Remove the back panel.
    • Remove the back panel.

  12. Apply a heated iOpener over the fingerprint sensor for a minute.
    • Apply a heated iOpener over the fingerprint sensor for a minute.

  13. Insert the edge of an opening tool underneath the square portion of the fingerprint sensor and slowly pry up to loosen the sensor. Continue prying around the perimeter of the fingerprint sensor until it is loosened. Continue prying around the perimeter of the fingerprint sensor until it is loosened.
    • Insert the edge of an opening tool underneath the square portion of the fingerprint sensor and slowly pry up to loosen the sensor.

    • Continue prying around the perimeter of the fingerprint sensor until it is loosened.

  14. From the outer side of the back panel, use your finger to push the fingerprint sensor out of its cutout.
    • From the outer side of the back panel, use your finger to push the fingerprint sensor out of its cutout.

    • Remove the fingerprint sensor.

    • If you are transferring the fingerprint sensor to a new back panel, use some double-sided tape such as Tesa tape to affix it to the new panel.

결론

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

Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.

다른 4명이 해당 안내서를 완성하였습니다.

Arthur Shi

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iFixit iFixit 회원

Community

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Can you please tell me what the square flex circuit (with 2 square contacts) is for, which is surrounding the FP Sensor? Mine was damaged, when my back cover was cracked. I have replaced the back cover, and will be getting another FP sensor (as mine is inoperable), but that large square flex is also damaged. I have no idea what this is for? I thought it was connected to the NFC circuit, but the phone still charges wirelessly.

ArcadeDude44 - 답글

I think that is the NFC antenna, which is mainly used for contactless payment and ID systems. It’s not used for wireless charging, which is the coil on top of the battery. Depending on how it is damaged, your NFC function may still work—it may just have less range if the antenna’s damaged.

Arthur Shi -

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