Battery Disconnection

Geschrieben von: Manuel Haeussermann
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Battery Disconnection

Schwierigkeitsgrad

Moderate

Schritte

12

Zeitaufwand

35 - 50 Minuten

Einleitung

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

Use this guide to disconnect the battery in the Xiaomi Redmi Note 9S.

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    • Prepare an iOpener and apply it to the back cover for at least two minutes to loosen the adhesive underneath.

    • 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.

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    • Secure a suction handle to the bottom edge of the rear glass, as close to the edge as possible.

    • If the rear glass is cracked, the suction handle may not stick. Try lifting it with strong tape, or superglue the suction handle in place and allow it to cure so you can proceed.

    • Lift the rear glass with the suction handle to create a small gap between the back cover 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 you created.

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

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

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    • Insert a second opening pick at the bottom edge of your phone.

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

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

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    • If the adhesive becomes hard to cut, it has most likely cooled down. Use your iOpener for one to two minutes to reheat it.

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

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

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

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    • Insert a fourth opening pick underneath the top left corner of your phone.

    • Slide the opening pick along the top edge to slice the adhesive.

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

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    • Insert a fifth opening pick underneath the top right corner.

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

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    • Remove the rear glass.

    • Apply new adhesive where necessary after cleaning the relevant areas with isopropyl alcohol (>90%).

    • Secure the new rear glass with pre-cut adhesive or double-sided adhesive tape. After installing the rear glass, apply strong, steady pressure to your phone for several minutes to help the adhesive form a good bond—a stack of heavy books works well.

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    • Use a Phillips screwdriver to remove the eleven 3.8 mm-long screws securing the motherboard cover.

    • One of the screws is hidden beneath an orange sticker.

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    • Insert the tip of an opening pick underneath the right edge of the motherboard cover.

    • Twist the opening pick sideways to pry up the motherboard cover.

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    • Use your fingers or a pair of tweezers to remove the motherboard cover.

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    • Use a spudger to disconnect the battery flex cable by prying the connector straight up from its socket.

Abschluss

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.

Tinte & Feder

Manuel Haeussermann

Mitglied seit: 13/07/22

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