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  1. Samsung Galaxy A40 Battery Replacement, Remove the SIM tray: Schritt 1, Bild 1 von 3 Samsung Galaxy A40 Battery Replacement, Remove the SIM tray: Schritt 1, Bild 2 von 3 Samsung Galaxy A40 Battery Replacement, Remove the SIM tray: Schritt 1, Bild 3 von 3
    • Insert a SIM card eject tool, a SIM eject bit or a straightened paper clip into the hole on the SIM tray located on the left side of the phone.

    • Press your SIM card eject tool firmly into the hole in order to eject the SIM card tray.

    • Remove the SIM card tray.

    • When reinserting the cards, make sure to properly orient them in the tray.

  2. Samsung Galaxy A40 Battery Replacement, Loosen the back cover adhesive: Schritt 2, Bild 1 von 1
    • Apply a heated iOpener to the back cover to loosen the adhesive underneath. Apply the iOpener for at least two minutes.

  3. Samsung Galaxy A40 Battery Replacement, Insert an opening pick: Schritt 3, Bild 1 von 2 Samsung Galaxy A40 Battery Replacement, Insert an opening pick: Schritt 3, Bild 2 von 2
    • Secure a suction handle to the right edge of the back cover, as close to the edge as possible.

    • If the phone's back cover is damaged, 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 back cover with the suction handle to create a small gap between the back cover and the frame.

    • Insert an opening pick into the gap.

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

  4. Samsung Galaxy A40 Battery Replacement, Slice the adhesive: Schritt 4, Bild 1 von 2 Samsung Galaxy A40 Battery Replacement, Slice the adhesive: Schritt 4, Bild 2 von 2
    • Slide the opening pick to the bottom right corner and leave it in place to prevent the adhesive from resealing.

  5. Samsung Galaxy A40 Battery Replacement, Insert a second opening pick: Schritt 5, Bild 1 von 2 Samsung Galaxy A40 Battery Replacement, Insert a second opening pick: Schritt 5, Bild 2 von 2
    • Insert a second opening pick at the bottom right corner.

    • Slide the opening pick along the right edge of your phone to cut the adhesive beneath the back cover.

    • Leave the opening pick in the top right corner.

    • At this point of the back cover removal feel free to remove the suction cup or continue to use it for a better grip.

  6. Samsung Galaxy A40 Battery Replacement, Cut the adhesive: Schritt 6, Bild 1 von 2 Samsung Galaxy A40 Battery Replacement, Cut the adhesive: Schritt 6, Bild 2 von 2
    • Insert a third opening pick at the top right corner of your phone.

    • Slide the opening pick along the top edge of your phone to cut the adhesive.

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

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

  7. Samsung Galaxy A40 Battery Replacement: Schritt 7, Bild 1 von 2 Samsung Galaxy A40 Battery Replacement: Schritt 7, Bild 2 von 2
    • Insert a fourth opening pick at the top left corner of your phone.

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

    • Leave the opening pick in the bottom left corner.

  8. Samsung Galaxy A40 Battery Replacement: Schritt 8, Bild 1 von 2 Samsung Galaxy A40 Battery Replacement: Schritt 8, Bild 2 von 2
    • Insert a fifth opening pick to cut the remaining adhesive at the bottom edge of your phone.

    • In order to cut all the adhesive at the bottom edge of the device, you need to insert the opening pick about 0.4 inch (1cm).

  9. Samsung Galaxy A40 Battery Replacement, Remove the back cover: Schritt 9, Bild 1 von 2 Samsung Galaxy A40 Battery Replacement, Remove the back cover: Schritt 9, Bild 2 von 2
    • To avoid tearing the fingerprint cable during the following step, make sure to gently press down the fingerprint reader while lifting the back cover.

    • Fold the back cover upwards and remove it.

  10. Samsung Galaxy A40 Battery Replacement, Unfasten the screws: Schritt 10, Bild 1 von 1
    • Remove the thirteen 3.4 mm-long Phillips #00 screws.

  11. Samsung Galaxy A40 Battery Replacement, Insert an opening pick: Schritt 11, Bild 1 von 2 Samsung Galaxy A40 Battery Replacement, Insert an opening pick: Schritt 11, Bild 2 von 2
    • Insert an opening pick between the left edge of the phone assembly and the midframe.

    • Slide the opening pick along the left edge of the phone to release the plastic clips holding the midframe in place.

  12. Samsung Galaxy A40 Battery Replacement, Release the plastic clips: Schritt 12, Bild 1 von 2 Samsung Galaxy A40 Battery Replacement, Release the plastic clips: Schritt 12, Bild 2 von 2
    • Slide the opening pick around the bottom right corner and release the plastic clips at the bottom edge of the phone assembly.

  13. Samsung Galaxy A40 Battery Replacement: Schritt 13, Bild 1 von 2 Samsung Galaxy A40 Battery Replacement: Schritt 13, Bild 2 von 2
    • Slide the opening pick along the right edge of the phone assembly to release the remaining plastic clips holding the midframe in place.

  14. Samsung Galaxy A40 Battery Replacement, Remove the midframe: Schritt 14, Bild 1 von 1
    • Remove the midframe.

  15. Samsung Galaxy A40 Battery Replacement, Disconnect the battery: Schritt 15, Bild 1 von 2 Samsung Galaxy A40 Battery Replacement, Disconnect the battery: Schritt 15, Bild 2 von 2
    • Use the flat end of a spudger to pry up and disconnect the battery cable.

  16. Samsung Galaxy A40 Battery Replacement, Disconnect the main flex cable: Schritt 16, Bild 1 von 2 Samsung Galaxy A40 Battery Replacement, Disconnect the main flex cable: Schritt 16, Bild 2 von 2
    • Use a spudger to pry up and disconnect the upper end of the main flex cable.

  17. Samsung Galaxy A40 Battery Replacement, Remove the main flex cable: Schritt 17, Bild 1 von 3 Samsung Galaxy A40 Battery Replacement, Remove the main flex cable: Schritt 17, Bild 2 von 3 Samsung Galaxy A40 Battery Replacement, Remove the main flex cable: Schritt 17, Bild 3 von 3
    • Use a spudger to pry up and disconnect the bottom end of the main flex cable.

    • Remove the main flex cable.

    • There's a small gap in the midframe beneath the battery, next to the display connector. Avoid applying adhesive remover in the bottom right corner of the battery to prevent the adhesive remover from loosening the display adhesive.

    • If you're using adhesive remover, follow these preparation steps first.

    • Lift the right edge of the phone assembly and tilt the phone at a 45° angle.

    • Apply a few drops of adhesive remover or high-concentration (90% or higher) isopropyl alcohol into the gap at the bottom edge of the battery. Let the adhesive remover run down to the left edge of the battery but avoid the right edge.

    • Tilt your phone in the direction of the rear facing camera to spread the adhesive remover beneath the battery.

    • Let the adhesive remover penetrate the battery adhesive for at least 1 minute.

  18. Samsung Galaxy A40 Battery Replacement, Pry up the battery: Schritt 19, Bild 1 von 3 Samsung Galaxy A40 Battery Replacement, Pry up the battery: Schritt 19, Bild 2 von 3 Samsung Galaxy A40 Battery Replacement, Pry up the battery: Schritt 19, Bild 3 von 3
    • Try your best not to deform the battery during the following removal process. Soft-shell lithium-ion batteries can leak dangerous chemicals, catch fire, or even explode if damaged. Do not use excessive force or pry at the battery with metal tools.

    • Insert a spudger in the gap at the bottom left edge of the battery.

    • Slide the spudger underneath the battery.

    • Use the spudger to pry up the battery.

    • The battery should come off easily. In case the battery is still sticky, repeat the previous adhesive remover procedure.

  19. Samsung Galaxy A40 Battery Replacement, Remove the battery: Schritt 20, Bild 1 von 1
    • Remove the battery.

    • Do not reinstall a damaged or deformed battery, as doing so is a potential safety hazard.

    • Before you adhere the battery during reassembly, temporarily reconnect the battery connector to help align it correctly. Adhere the aligned battery to the phone, disconnect it, and continue reassembling your phone.

Abschluss

If possible, turn on your device and test your repair before installing new adhesive and resealing.

Secure the new battery with pre-cut adhesive or double-sided adhesive tape. In order to position it correctly, apply the new adhesive into the device at the places where the old adhesive was located, not directly onto the battery. Press the new battery firmly into place.

To reassemble your device, follow these instructions in reverse order. Apply new adhesive where necessary after cleaning the relevant areas with isopropyl alcohol (>90%).

For optimal performance, after completing this guide, calibrate your newly installed battery.

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.

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Dominik Schnabelrauch

Mitglied seit: 23.11.2016

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Ein Kommentar

Hey, thanks a lot! I was able to replace the battery thanks to your tutorial. The only problem was that you didn't mention to remove the fingerprint scanner before removing the back cover. Without that, the cable jumps out of the port while removing the back cover.

Marc Diercksen - Antwort

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