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Xiaomi Poco M3 Fingerprint Sensor Replacement

Introduction

Use this guide to replace the fingerprint sensor on your Xiaomi Poco M3.

What you need

  1. Xiaomi Poco M3 Fingerprint Sensor Replacement, SIM Card tray removal: step 1, image 1 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement, SIM Card tray removal: step 1, image 2 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement, SIM Card tray removal: step 1, image 3 of 3

    • Insert a SIM card eject tool or a paperclip into the small hole in the SIM card tray, located near the top left corner of the Poco M3.

    • Press firmly to eject the SIM card tray.

    • Remove the SIM card tray from the phone by pulling it out of the phone assembly.

    • If the tray holds a SIM card it will fall out easily.

    • When reinserting the SIM card, make sure it's in the correct orientation inside the SIM card tray.

    • A thin rubber gasket around the SIM card tray provides water and dust protection. If this gasket is damaged or missing, replace the gasket or the entire SIM card tray to protect your Poco M3's internal components.

    Edit

  2. Xiaomi Poco M3 Fingerprint Sensor Replacement, Insert a spudger: step 2, image 1 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement, Insert a spudger: step 2, image 2 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement, Insert a spudger: step 2, image 3 of 3

    • Insert a spudger into the charging port at a steep angle.

    • Do not insert the spudger in a flat angle like you would do with a charging cable to avoid damaging the charging port.

    • Use the spudger to create a gap between the phone assembly and the back cover by prying the back cover away from the bottom edge of the screen.

    Edit

  3. Xiaomi Poco M3 Fingerprint Sensor Replacement, Insert an opening pick: step 3, image 1 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement, Insert an opening pick: step 3, image 2 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement, Insert an opening pick: step 3, image 3 of 3

    • Insert an opening pick into the gap between the phone assembly and the back cover.

    • Remove the spudger.

    Edit

  4. Xiaomi Poco M3 Fingerprint Sensor Replacement, Release the plastic clips: step 4, image 1 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement, Release the plastic clips: step 4, image 2 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement, Release the plastic clips: step 4, image 3 of 3

    • Slide the opening pick to the bottom left corner of the phone to release the plastic clips holding the back cover in place.

    • Slide the opening pick around the bottom left corner.

    Edit

  5. Xiaomi Poco M3 Fingerprint Sensor Replacement: step 5, image 1 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement: step 5, image 2 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement: step 5, image 3 of 3

    • Slide the opening pick along the left edge of the Poco M3 to release the plastic clips.

    Edit

  7. Xiaomi Poco M3 Fingerprint Sensor Replacement: step 6, image 1 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement: step 6, image 2 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement: step 6, image 3 of 3

    • Slide the opening pick around the top left corner to release the plastic clips.

    • Slide the opening pick along the top edge of the phone to release the plastic clips holding the back cover in place.

    Edit

  8. Xiaomi Poco M3 Fingerprint Sensor Replacement: step 7, image 1 of 2 Xiaomi Poco M3 Fingerprint Sensor Replacement: step 7, image 2 of 2

    • Slide the opening pick around the top right corner to release the plastic clips.

    • Leave the opening pick inserted above the volume buttons.

    • Avoid using your opening pick in the area where the physical buttons are located. There's a flex cable running to the motherboard which can be easily torn.

    Edit

  9. Xiaomi Poco M3 Fingerprint Sensor Replacement: step 8, image 1 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement: step 8, image 2 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement: step 8, image 3 of 3

    • Insert another opening pick into the gap at the bottom edge of your phone.

    • Slide the opening pick around the bottom right corner to release the plastic clips securing the back cover.

    • Slide the opening pick along the right edge of the phone to release the remaining plastic clips. Stop just below the fingerprint reader.

    Edit

  10. Xiaomi Poco M3 Fingerprint Sensor Replacement: step 9, image 1 of 2 Xiaomi Poco M3 Fingerprint Sensor Replacement: step 9, image 2 of 2

    • Remove the opening picks and flip the phone over.

    • Open up the phone by swinging the back cover up from the right side, like the front cover of a book.

    • Avoid tensioning the fingerprint flex cable during this procedure.

    Edit

  11. Xiaomi Poco M3 Fingerprint Sensor Replacement, Unfasten the screws: step 10, image 1 of 1

    • Use a Phillips #00 screwdriver to remove the ten 3.9 mm-long screws.

    Edit

  12. Xiaomi Poco M3 Fingerprint Sensor Replacement, Pry up the motherboard cover: step 11, image 1 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement, Pry up the motherboard cover: step 11, image 2 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement, Pry up the motherboard cover: step 11, image 3 of 3

    • Slide an opening pick under the bottom right corner of the motherboard cover.

    • Slide the opening pick along the right edge of the motherboard cover to release the plastic clips holding it in place.

    • At the top right corner, twist the opening pick countercockwise to pry up the motherboard cover.

    Edit

  13. Xiaomi Poco M3 Fingerprint Sensor Replacement, Remove the motherboard cover: step 12, image 1 of 2 Xiaomi Poco M3 Fingerprint Sensor Replacement, Remove the motherboard cover: step 12, image 2 of 2

    • Remove the motherboard cover.

    Edit

  14. Xiaomi Poco M3 Fingerprint Sensor Replacement, Disconnect the fingerprint sensor cable: step 13, image 1 of 2 Xiaomi Poco M3 Fingerprint Sensor Replacement, Disconnect the fingerprint sensor cable: step 13, image 2 of 2

    • Use the flat end of a spudger to disconnect the fingerprint sensor cable at the bottom left corner of the motherboard.

    Edit

  15. Xiaomi Poco M3 Fingerprint Sensor Replacement, Free the fingerprint sensor: step 14, image 1 of 2 Xiaomi Poco M3 Fingerprint Sensor Replacement, Free the fingerprint sensor: step 14, image 2 of 2
    Tool used on this step:
    Tweezers
    $4.99
    Buy

    • Use tweezers to lift the fingerprint sensor rubber gasket off of the top plastic pin.

    • Take care to not scratch or yank the fingerprint sensor ribbon cable or pierce the fingerprint senor rubber gasket while removing it.

    Edit

  16. Xiaomi Poco M3 Fingerprint Sensor Replacement, Remove the fingerprint sensor: step 15, image 1 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement, Remove the fingerprint sensor: step 15, image 2 of 3 Xiaomi Poco M3 Fingerprint Sensor Replacement, Remove the fingerprint sensor: step 15, image 3 of 3

    • Use tweezers to lift the fingerprint sensor rubber gasket off of the bottom plastic pin.

    • Remove the fingerprint sensor.

    Edit
Conclusion

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

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

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

2 other people completed this guide.

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Dominik Schnabelrauch

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One Comment

Where can i buy original fingerprint scanner for poco m3?

cherrymaemiralles2 - Reply

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