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Введение

Use this guide to replace a worn-out or dead battery in your Samsung Galaxy S21 Plus.

This guide was performed on the SM-G996B/DS (international) model. Other models have an additional antenna cable sitting in the edge of the midframe.

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.

Although it’s not necessary to remove the interconnect cables to replace the battery we advise doing so. It makes the battery removal and the reassembly way easier.

If you do not replace the adhesive seals when reassembling, your device will function normally, but will most likely lose its water protection.

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

  1. Samsung Galaxy S21 Plus Battery Replacement, Heat the back cover: step 1, image 1 of 1
    • Prepare an iOpener and apply it to the back cover for at least three 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.

  2. Samsung Galaxy S21 Plus Battery Replacement, Insert an opening pick: step 2, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement, Insert an opening pick: step 2, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement, Insert an opening pick: step 2, image 3 of 3
    • Secure a suction handle to the bottom edge of the back cover, as close to the edge as possible.

    • If the back cover 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 back cover with the suction handle to create a small gap between the back cover and the frame.

    • If 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.

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

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

  3. Samsung Galaxy S21 Plus Battery Replacement, Slice the adhesive: step 3, image 1 of 2 Samsung Galaxy S21 Plus Battery Replacement, Slice the adhesive: step 3, image 2 of 2
    • Insert a second opening pick at the bottom edge of your phone.

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

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

  4. Samsung Galaxy S21 Plus Battery Replacement, Slice the adhesive: step 4, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement, Slice the adhesive: step 4, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement, Slice the adhesive: step 4, image 3 of 3
    • If the adhesive becomes hard to cut, it has most likely cooled down. Use your iOpener for two to three minutes to reheat it.

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

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

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

  5. Samsung Galaxy S21 Plus Battery Replacement: step 5, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement: step 5, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement: step 5, image 3 of 3
    • When you slice near the camera assembly, insert only the tip of the opening pick (~4-5 mm) to avoid damaging or smearing the camera.

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

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

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

  6. Samsung Galaxy S21 Plus Battery Replacement: step 6, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement: step 6, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement: step 6, image 3 of 3
    • Insert a fifth opening pick underneath the bottom left corner.

    • Slide the opening pick along the left edge of the back cover to slice the remaining adhesive.

    • When you slice near the power button, insert only the tip of the opening pick (~3-4 mm) to avoid damaging the power and volume button flex cable.

  7. Samsung Galaxy S21 Plus Battery Replacement, Remove the back cover: step 7, image 1 of 2 Samsung Galaxy S21 Plus Battery Replacement, Remove the back cover: step 7, image 2 of 2
    • Remove the back cover.

    • During reassembly:

    • This is a good point to power on your phone and test all functions before sealing it up. Be sure to power your phone back down completely before you continue working.

    • Remove any adhesive chunks with a pair of tweezers or your fingers. Use some high concentration (over 90%) isopropyl alcohol to wipe away any adhesive residue.

    • If you're using Samsung custom-cut adhesives, follow this guide.

    • If you're using double-sided tape, follow this guide.

  8. Samsung Galaxy S21 Plus Battery Replacement, Slice the adhesive: step 8, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement, Slice the adhesive: step 8, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement, Slice the adhesive: step 8, image 3 of 3
    • Take care not to puncture or bend the battery with your tool—a punctured or bent battery may leak dangerous chemicals or cause a thermal event.

    • Insert an opening pick underneath the left bottom end of the NFC antenna and charging coil assembly.

    • Carefully slide the opening pick along the bottom left edge of the assembly to separate it from the battery.

  9. Samsung Galaxy S21 Plus Battery Replacement: step 9, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement: step 9, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement: step 9, image 3 of 3
    • Insert an opening pick underneath the bottom end of the NFC antenna and charging coil assembly.

    • Carefully slide the opening pick along the bottom of the assembly to separate it from the loudspeaker.

  10. Samsung Galaxy S21 Plus Battery Replacement, Disconnect the charging coil: step 10, image 1 of 2 Samsung Galaxy S21 Plus Battery Replacement, Disconnect the charging coil: step 10, image 2 of 2
    • Use a spudger to disconnect the charging coil by prying the connector straight up from its socket.

  11. Samsung Galaxy S21 Plus Battery Replacement, Disconnect the NFC antenna: step 11, image 1 of 2 Samsung Galaxy S21 Plus Battery Replacement, Disconnect the NFC antenna: step 11, image 2 of 2
    • Use a spudger to disconnect the NFC antenna by prying the connector straight up from its socket.

  12. Samsung Galaxy S21 Plus Battery Replacement, Unfasten the NFC antenna & charging coil assembly screws: step 12, image 1 of 1
    • Use a Phillips screwdriver to remove the five 3.9 mm-long screws securing the NFC antenna and charging coil assembly.

  13. Samsung Galaxy S21 Plus Battery Replacement, Remove the NFC antenna & charging coil assembly: step 13, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement, Remove the NFC antenna & charging coil assembly: step 13, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement, Remove the NFC antenna & charging coil assembly: step 13, image 3 of 3
    • Use a pair of tweezers or your fingers to carefully remove the NFC antenna and charging coil assembly.

  14. Samsung Galaxy S21 Plus Battery Replacement, Disconnect the battery cable: step 14, image 1 of 2 Samsung Galaxy S21 Plus Battery Replacement, Disconnect the battery cable: step 14, image 2 of 2
    • Use a spudger to disconnect the battery cable by prying the connector straight up from its socket.

  15. Samsung Galaxy S21 Plus Battery Replacement, Unfasten the loudspeaker assembly screws: step 15, image 1 of 1
    • Use a Phillips screwdriver to remove the six 3.9 mm-long screws securing the loudspeaker assembly.

  16. Samsung Galaxy S21 Plus Battery Replacement, Pry up the loudspeaker assembly: step 16, image 1 of 2 Samsung Galaxy S21 Plus Battery Replacement, Pry up the loudspeaker assembly: step 16, image 2 of 2
    • Insert an opening pick into the gap between the top edge of the loudspeaker assembly and the midframe.

    • Use your opening pick to pry up the loudspeaker assembly by tilting it downwards.

  17. Samsung Galaxy S21 Plus Battery Replacement, Remove the loudspeaker assembly: step 17, image 1 of 2 Samsung Galaxy S21 Plus Battery Replacement, Remove the loudspeaker assembly: step 17, image 2 of 2
    • Remove the loudspeaker assembly.

    • During reassembly apply new adhesive where it's necessary after cleaning the relevant areas with isopropyl alcohol (>90%).

  18. Samsung Galaxy S21 Plus Battery Replacement, Disconnect the display flex cable: step 18, image 1 of 2 Samsung Galaxy S21 Plus Battery Replacement, Disconnect the display flex cable: step 18, image 2 of 2
    • Use a spudger to disconnect the display flex cable by prying its upper connector straight up from its socket.

  19. Samsung Galaxy S21 Plus Battery Replacement, Disconnect the main & interconnect flex cables: step 19, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement, Disconnect the main & interconnect flex cables: step 19, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement, Disconnect the main & interconnect flex cables: step 19, image 3 of 3
    • Use a spudger to disconnect the main and interconnect flex cables from the motherboard by prying their upper connectors straight up from their sockets.

  20. Samsung Galaxy S21 Plus Battery Replacement, Remove the display flex cable: step 20, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement, Remove the display flex cable: step 20, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement, Remove the display flex cable: step 20, image 3 of 3
    • Use a spudger to disconnect the display flex cable by prying its bottom connector straight up from its socket.

    • Use your fingers or a pair of tweezers to carefully remove the display flex cable.

  21. Samsung Galaxy S21 Plus Battery Replacement, Remove the main flex cable: step 21, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement, Remove the main flex cable: step 21, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement, Remove the main flex cable: step 21, image 3 of 3
    • Use a spudger to disconnect the main flex cable from the daughterboard by prying its bottom connector straight up from its socket.

    • Use your fingers or a pair of tweezers to carefully remove the main flex cable.

  22. Samsung Galaxy S21 Plus Battery Replacement, Remove the interconnect flex cable: step 22, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement, Remove the interconnect flex cable: step 22, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement, Remove the interconnect flex cable: step 22, image 3 of 3
    • Use a spudger to disconnect the interconnect flex cable from the daughterboard by prying its bottom connector straight up from its socket.

    • Use your fingers or a pair of tweezers to carefully remove the interconnect flex cable.

  23. Samsung Galaxy S21 Plus Battery Replacement, Disconnect the power button flex cable: step 23, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement, Disconnect the power button flex cable: step 23, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement, Disconnect the power button flex cable: step 23, image 3 of 3
    • Use a spudger to disconnect the power button flex cable by prying the connector straight up from its socket.

    • Use your spudger to carefully bend the flex cable to the side to avoid damaging it during the battery removal.

  24. Samsung Galaxy S21 Plus Battery Replacement, Apply high concentration isopropyl alcohol: step 24, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement, Apply high concentration isopropyl alcohol: step 24, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement, Apply high concentration isopropyl alcohol: step 24, image 3 of 3
    • The battery adhesive of the Samsung Galaxy S21 Plus is very strong. If you can't manage to remove the battery by only using high concentration isopropyl alcohol (over 90%) you can try a combination with heat. In this case prepare an iOpener and apply it to the screen for at least two minutes to loosen the adhesive underneath the battery.

    • Apply a few drops of high concentration (over 90%) isopropyl alcohol to the gaps in between the frame and the left and right edge of the battery.

    • Only apply a few drops and come back again if necessary. The are two cutouts in the midframe of the phone and too much isopropyl alcohol may run to the screen and loosen it.

    • Let the isopropyl alcohol penetrate the battery adhesive for at least two to three minutes.

  25. Samsung Galaxy S21 Plus Battery Replacement, Insert an opening pick: step 25, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement, Insert an opening pick: step 25, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement, Insert an opening pick: step 25, image 3 of 3
    • For this step, insert the opening pick into the edge with a wider gap between the midframe and the battery so that you have more space for the opening pick and get a better leverage.

    • Secure a suction handle to the battery, as close to the battery edge as possible.

    • Insert an opening pick into the gap between the edge of the battery and the frame.

    • Rotate the opening pick to insert its long edge into the gap.

    • Take care not to puncture or bend the battery during the removal procedure—a punctured or bent battery may leak dangerous chemicals or cause a thermal event. In case you're struggling to pull up the battery apply more isopropyl alcohol and try again.

    • Pull up on the suction handle and tilt the opening pick downwards at the same time to pry up the battery.

    • If you're struggling to pull up the battery with your suction handle you can try to use a heavy-duty suction cup instead.

  26. Samsung Galaxy S21 Plus Battery Replacement, Remove the battery: step 27, image 1 of 3 Samsung Galaxy S21 Plus Battery Replacement, Remove the battery: step 27, image 2 of 3 Samsung Galaxy S21 Plus Battery Replacement, Remove the battery: step 27, image 3 of 3
    • Peel the battery off the remaining adhesive.

    • Remove the battery.

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

    • 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.

    • During reassembly, temporarily reconnect the battery to the motherboard to help align it correctly. Disconnect the battery after it is seated.

Заключение

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

Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.

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

Follow this guide to perform a battery cycle reset, and 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.

Еще один человек закончил это руководство.

Dominik Schnabelrauch

Участник с: 23.11.2016

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