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Einleitung

This is a prerequisite-only guide! This guide is part of another procedure and is not meant to be used alone.

How to disconnect the battery in the Xiaomi Redmi Note 7.

  1. Apply a  heated iOpener to the rear glass to loosen the adhesive underneath. Apply the iOpener for at least two minutes.
    • Apply a heated iOpener to the rear glass to loosen the adhesive underneath. Apply the iOpener for at least two minutes.

  2. Secure a suction handle to the bottom edge of the rear glass, as close to the edge as possible. If your rear glass is badly cracked, covering it with a layer of clear packing tape may allow the suction cup to adhere. Alternatively, very strong tape may be used instead of the suction cup. If all else fails, you can superglue the suction cup to the rear glass. Lift the rear glass with the suction handle to create a small gap between the glass and the frame.
    • Secure a suction handle to the bottom edge of the rear glass, as close to the edge as possible.

    • If your rear glass is badly cracked, covering it with a layer of clear packing tape may allow the suction cup to adhere. Alternatively, very strong tape may be used instead of the suction cup. If all else fails, you can superglue the suction cup to the rear glass.

    • Lift the rear glass with the suction handle to create a small gap between the glass and the frame.

    • In case you have trouble creating a gap, apply more heat to further soften the adhesive. Follow the iOpener instructions to avoid overheating.

    • Insert an opening pick into the gap.

    • Slide the opening pick to the bottom right corner to slice the adhesive.

  3. Insert a second opening pick and slide it to the bottom left corner to slice the adhesive. Leave the opening picks in place to prevent the adhesive from resealing.
    • Insert a second opening pick and slide it to the bottom left corner to slice the adhesive.

    • Leave the opening picks in place to prevent the adhesive from resealing.

  4. If the adhesive becomes hard to cut, it has most likely cooled down. Use your iOpener to reheat it. Insert a third opening pick at the bottom left corner. Slide the opening pick along the left edge of the phone to slice the rear glass adhesive.
    • If the adhesive becomes hard to cut, it has most likely cooled down. Use your iOpener to reheat it.

    • Insert a third opening pick at the bottom left corner.

    • Slide the opening pick along the left edge of the phone to slice the rear glass adhesive.

    • Leave the opening pick in its place at the top left corner to prevent the adhesive from resealing.

  5. Insert a fourth opening pick under the top left corner of the rear glass. Slide the opening pick along the top edge of the phone to slice the rear glass adhesive.
    • Insert a fourth opening pick under the top left corner of the rear glass.

    • Slide the opening pick along the top edge of the phone to slice the rear glass adhesive.

    • Leave the opening pick in the top right corner to prevent the adhesive from resealing.

  6. Insert a fifth opening pick at the top right corner of the phone. Slide the opening pick along the right edge to slice the remaining adhesive.
    • Insert a fifth opening pick at the top right corner of the phone.

    • Slide the opening pick along the right edge to slice the remaining adhesive.

    • Don't try to remove the rear glass all the way yet. The fingerprint sensor is still connected to the motherboard.

  7. Carefully fold the rear glass to the left side of the phone assembly like you'd open the front cover of a book. Avoid tensioning the fingerprint flex cable during this process. Avoid tensioning the fingerprint flex cable during this process.
    • Carefully fold the rear glass to the left side of the phone assembly like you'd open the front cover of a book.

    • Avoid tensioning the fingerprint flex cable during this process.

  8. Use a Phillips screw driver to remove the three 3.3 mm-long screws securing the connector cover to the midframe.
    • Use a Phillips screw driver to remove the three 3.3 mm-long screws securing the connector cover to the midframe.

  9. Use a pair of tweezers to remove the connector cover. Use a pair of tweezers to remove the connector cover.
    • Use a pair of tweezers to remove the connector cover.

  10. Use the flat end of a spudger to pry up and disconnect the battery flex cable from the motherboard. Use the flat end of a spudger to pry up and disconnect the battery flex cable from the motherboard.
    • Use the flat end of a spudger to pry up and disconnect the battery flex cable from the motherboard.

Abschluss

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

Dominik Schnabelrauch

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