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Introduction

Use this guide to replace a worn-out or dead battery in your Galaxy A70.

If your battery is swollen, take appropriate precautions. For your safety, discharge your battery below 25% before disassembling your phone. This reduces the risk of a dangerous thermal event if the battery is accidentally damaged during the repair.

You’ll need replacement adhesive to reattach components when reassembling the device.

  1. Samsung Galaxy A70 Battery Replacement, Eject the SIM tray: step 1, image 1 of 3 Samsung Galaxy A70 Battery Replacement, Eject the SIM tray: step 1, image 2 of 3 Samsung Galaxy A70 Battery Replacement, Eject the SIM tray: step 1, image 3 of 3
    • Insert a SIM card eject tool, a SIM eject bit, or a straightened paper clip into the hole on the SIM tray located at the left edge of the phone.

    • Press firmly to eject the tray and remove it.

  2. Samsung Galaxy A70 Battery Replacement, Soften the adhesive: step 2, image 1 of 1
    • Switch off your Galaxy A70.

    • Heat an iOpener and use it to soften the adhesive beneath the back cover. Apply the iOpener for at least two minutes. You might want to repeat this step several times during the back cover removal.

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

  3. Samsung Galaxy A70 Battery Replacement, Create a gap: step 3, image 1 of 2 Samsung Galaxy A70 Battery Replacement, Create a gap: step 3, image 2 of 2
    • Apply a suction cup to the back of the phone, as close as possible to the center of the right edge.

    • Pull on the suction cup to create a gap between the back cover and the frame.

    • Insert an opening pick into the gap.

  4. Samsung Galaxy A70 Battery Replacement, Slice the adhesive: step 4, image 1 of 3 Samsung Galaxy A70 Battery Replacement, Slice the adhesive: step 4, image 2 of 3 Samsung Galaxy A70 Battery Replacement, Slice the adhesive: step 4, image 3 of 3
    • Slide the opening pick along the edge to the bottom right corner.

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

    • Once you have inserted an opening pick, feel free to remove the suction cup or continue to use it for a better grip during the removal procedure.

  5. Samsung Galaxy A70 Battery Replacement: step 5, image 1 of 3 Samsung Galaxy A70 Battery Replacement: step 5, image 2 of 3 Samsung Galaxy A70 Battery Replacement: step 5, image 3 of 3
    • Insert a second opening pick underneath the bottom right corner of the back cover.

    • Slide the opening pick along the edge to the top right corner.

    • If you have trouble with cutting, you can use the iOpener again to soften the adhesive.

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

  6. Samsung Galaxy A70 Battery Replacement: step 6, image 1 of 2 Samsung Galaxy A70 Battery Replacement: step 6, image 2 of 2
    • Insert a third opening pick underneath the top right corner of the back cover.

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

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

  7. Samsung Galaxy A70 Battery Replacement: step 7, image 1 of 3 Samsung Galaxy A70 Battery Replacement: step 7, image 2 of 3 Samsung Galaxy A70 Battery Replacement: step 7, image 3 of 3
    • Insert a fourth opening pick underneath the top left corner.

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

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

  8. Samsung Galaxy A70 Battery Replacement: step 8, image 1 of 2 Samsung Galaxy A70 Battery Replacement: step 8, image 2 of 2
    • Insert a fifth opening pick underneath the bottom left corner.

    • Slide it along the the bottom edge to cut the remaining adhesive.

  9. Samsung Galaxy A70 Battery Replacement, Remove the back cover: step 9, image 1 of 1
    • Remove the back cover.

    • After installing the back cover, 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.

  10. Samsung Galaxy A70 Battery Replacement, Unscrew the midframe: step 10, image 1 of 1
    • Use a Phillips screwdriver to remove the fourteen 4.0 mm-long screws that secure the midframe.

  11. Samsung Galaxy A70 Battery Replacement, Insert an opening pick: step 11, image 1 of 2 Samsung Galaxy A70 Battery Replacement, Insert an opening pick: step 11, image 2 of 2
    • The midframe is held in place by plastic clips.

    • Insert an opening pick between the midframe and front panel assembly on the right edge of the phone near the volume button.

  12. Samsung Galaxy A70 Battery Replacement, Detach the plastic clips: step 12, image 1 of 2 Samsung Galaxy A70 Battery Replacement, Detach the plastic clips: step 12, image 2 of 2
    • Slide the opening pick to the bottom right corner to detach the plastic clips.

  13. Samsung Galaxy A70 Battery Replacement: step 13, image 1 of 3 Samsung Galaxy A70 Battery Replacement: step 13, image 2 of 3 Samsung Galaxy A70 Battery Replacement: step 13, image 3 of 3
    • Continue sliding the opening around the bottom right corner to the bottom left corner to detach the plastic clips.

  14. Samsung Galaxy A70 Battery Replacement: step 14, image 1 of 3 Samsung Galaxy A70 Battery Replacement: step 14, image 2 of 3 Samsung Galaxy A70 Battery Replacement: step 14, image 3 of 3
    • Slide the opening pick along the left edge to detach the plastic clips.

  15. Samsung Galaxy A70 Battery Replacement, Remove the midframe: step 15, image 1 of 1
    • Remove the midframe.

  16. Samsung Galaxy A70 Battery Replacement, Disconnect the battery: step 16, image 1 of 2 Samsung Galaxy A70 Battery Replacement, Disconnect the battery: step 16, image 2 of 2
    • Use a spudger to disconnect the battery by prying the connector straight up from its socket.

  17. Samsung Galaxy A70 Battery Replacement, Disconnect the interconnect cable: step 17, image 1 of 2 Samsung Galaxy A70 Battery Replacement, Disconnect the interconnect cable: step 17, image 2 of 2
    • Use a spudger to disconnect the interconnect cable from the motherboard by prying the connector straight up from its socket.

  18. Samsung Galaxy A70 Battery Replacement, Disconnect the interconnect cable: step 18, image 1 of 3 Samsung Galaxy A70 Battery Replacement, Disconnect the interconnect cable: step 18, image 2 of 3 Samsung Galaxy A70 Battery Replacement, Disconnect the interconnect cable: step 18, image 3 of 3
    • Use a spudger to disconnect the interconnect cable from the daughterboard by prying the connector straight up from its socket.

    • Remove the interconnect cable

  19. Samsung Galaxy A70 Battery Replacement, Apply adhesive remover: step 19, image 1 of 1
    • Follow these preparation steps before using adhesive remover.

    • 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.

    • Lift the bottom of your phone up to tilt it in the direction of the rear facing camera to let the adhesive remover spread out underneath the battery.

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

  20. Samsung Galaxy A70 Battery Replacement, Pry up the battery: step 20, image 1 of 3 Samsung Galaxy A70 Battery Replacement, Pry up the battery: step 20, image 2 of 3 Samsung Galaxy A70 Battery Replacement, Pry up the battery: step 20, image 3 of 3
    • Try your best not to deform the battery during this 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 plastic card underneath the bottom edge of the battery.

    • Carefully slide it underneath the battery to loosen the adhesive.

    • Continue sliding the plastic card underneath to pry up the battery from its recess.

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

  21. Samsung Galaxy A70 Battery Replacement, Remove the battery: step 21, image 1 of 1
    • Remove the battery.

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

    • Before installing a new battery, remove any remaining adhesive from the phone, and clean the glued areas with isopropyl alcohol and a lint-free cloth.

Conclusion

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, calibrate your newly installed battery: Charge it to 100% and keep charging it for at least 2 more hours. Then use your device until it shuts off due to low battery. Finally, charge it uninterrupted to 100%.

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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Adriana Zwink

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One Comment

How to remove the adhesive on the midframe ? Can I immerse it in alcohol?

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