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Huawei Mate 20 Pro Battery Replacement

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  1. Huawei Mate 20 Pro Battery Replacement, Rear Glass: étape 1, image 1 de 1
    • Before you begin, switch off your phone.

    • Apply a heated iOpener to the back of the phone to loosen the adhesive beneath the back cover. Apply the iOpener for at least two minutes.

  2. Huawei Mate 20 Pro Battery Replacement: étape 2, image 1 de 3 Huawei Mate 20 Pro Battery Replacement: étape 2, image 2 de 3 Huawei Mate 20 Pro Battery Replacement: étape 2, image 3 de 3
    • Secure a suction handle to the bottom of the back cover, as close to the edge as possible.

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

    • Insert an opening pick into the gap.

    • If you have trouble, apply more heat to further soften the adhesive. Follow the iOpener instructions to avoid overheating.

    • Slide the opening pick to the bottom right corner.

  3. Huawei Mate 20 Pro Battery Replacement: étape 3, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 3, image 2 de 2
    • Insert a second opening pick and slide it to the bottom left corner to cut the adhesive.

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

  4. Huawei Mate 20 Pro Battery Replacement: étape 4, image 1 de 3 Huawei Mate 20 Pro Battery Replacement: étape 4, image 2 de 3 Huawei Mate 20 Pro Battery Replacement: étape 4, image 3 de 3
    • Insert a third opening pick at the bottom left corner.

    • Slide the tip of the opening pick from the bottom left corner along the side of the phone to cut the adhesive.

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

  5. Huawei Mate 20 Pro Battery Replacement: étape 5, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 5, image 2 de 2
    • If the adhesive becomes hard to cut, it has most likely cooled down. Use your iOpener to reheat it.

    • Insert a fourth opening pick under the top left corner of the back cover.

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

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

  6. Huawei Mate 20 Pro Battery Replacement: étape 6, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 6, image 2 de 2
    • Insert a fifth opening pick at the top right corner of the phone.

    • Slide the opening pick along the right side to cut the remaining adhesive.

  7. Huawei Mate 20 Pro Battery Replacement: étape 7, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 7, image 2 de 2
    • Lift and remove the back cover.

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

    • 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.

    • Secure the new back cover with pre-cut adhesive or double-sided adhesive tape. After installing the rear glass, apply pressure for several minutes to help the adhesive form a good bond, such as by placing it under a stack of heavy books.

  8. Huawei Mate 20 Pro Battery Replacement, Motherboard Cover with NFC & Charging Coil: étape 8, image 1 de 1
    • Remove the eight Phillips #00 screws (4.3 mm length).

  9. Huawei Mate 20 Pro Battery Replacement: étape 9, image 1 de 3 Huawei Mate 20 Pro Battery Replacement: étape 9, image 2 de 3 Huawei Mate 20 Pro Battery Replacement: étape 9, image 3 de 3
    • Slide an opening pick under the black adhesive at the bottom left of the charging coil.

    • Carefully slide the opening from the left to the right side to loosen the adhesive.

  10. Huawei Mate 20 Pro Battery Replacement: étape 10, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 10, image 2 de 2
    • Insert an opening pick under the bottom left corner of the motherboard cover.

    • Use the opening pick to pry up the motherboard cover.

    • Do not try to remove the motherboard cover all the way yet. The flex cable of the flash assembly is still connected to the motherboard.

  11. Huawei Mate 20 Pro Battery Replacement: étape 11, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 11, image 2 de 2
    • Carefully fold the motherboard cover in the direction of the battery.

    • Take special care to avoid ripping the flash assembly flex cable as it is still connected to the motherboard.

  12. Huawei Mate 20 Pro Battery Replacement: étape 12, image 1 de 3 Huawei Mate 20 Pro Battery Replacement: étape 12, image 2 de 3 Huawei Mate 20 Pro Battery Replacement: étape 12, image 3 de 3
    • Use a spudger to pry up and disconnect the flash assembly flex cable.

    • When you disconnect connectors like these, be careful not to dislodge the small surface-mounted components surrounding the socket.

    • Remove the motherboard cover including the NFC and charging coil.

  13. Huawei Mate 20 Pro Battery Replacement, Battery Disconnect: étape 13, image 1 de 2 Huawei Mate 20 Pro Battery Replacement, Battery Disconnect: étape 13, image 2 de 2
    • Use a spudger to pry up and disconnect the battery connector.

  14. Huawei Mate 20 Pro Battery Replacement, Daughterboard Cover: étape 14, image 1 de 1
    • Remove the three Phillips #00 screws (4.3 mm length).

    • If you want to remove or replace the loudspeaker, daughterboard, battery, or the OLED screen, remove the four Phillips #00 screws (4.3 mm length) which hold down the loudspeaker assembly.

  15. Huawei Mate 20 Pro Battery Replacement: étape 15, image 1 de 3 Huawei Mate 20 Pro Battery Replacement: étape 15, image 2 de 3 Huawei Mate 20 Pro Battery Replacement: étape 15, image 3 de 3
    • Slide an opening pick under the top right corner of the daughterboard cover.

    • Use the opening pick to pry up the daughterboard cover. Remove the daughterboard cover with tweezers.

  16. Huawei Mate 20 Pro Battery Replacement, Loudspeaker & Daughterboard: étape 16, image 1 de 2 Huawei Mate 20 Pro Battery Replacement, Loudspeaker & Daughterboard: étape 16, image 2 de 2
    • Use a Spudger to pry up and disconnect the interconnect flex cable from the daughterboard.

  17. Huawei Mate 20 Pro Battery Replacement: étape 17, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 17, image 2 de 2
    • Use a Spudger to pry up and disconnect the interconnect flex cable from the motherboard.

    • Remove the interconnect flex cable.

  18. Huawei Mate 20 Pro Battery Replacement: étape 18, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 18, image 2 de 2
    • Use a pair of tweezers to pry up and disconnect the connector of the black coax cable from the daughterboard.

    • Unroute the black coax cable from the metal clip on the daughterboard and fold it to the side.

  19. Huawei Mate 20 Pro Battery Replacement: étape 19, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 19, image 2 de 2
    • Slide an opening underneath the top left corner of the loudspeaker cover.

    • Use the opening pick to pry up the loudspeaker and daughterboard assembly.

  20. Huawei Mate 20 Pro Battery Replacement: étape 20, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 20, image 2 de 2
    • Remove the loudspeaker and daughterboard assembly.

  21. Huawei Mate 20 Pro Battery Replacement, Charging Port with Main Flex Cable: étape 21, image 1 de 2 Huawei Mate 20 Pro Battery Replacement, Charging Port with Main Flex Cable: étape 21, image 2 de 2
    • Use a spudger to pry up and disconnect the main flex cable from the motherboard.

  22. Huawei Mate 20 Pro Battery Replacement: étape 22, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 22, image 2 de 2
    • Use a spudger to pry up and disconnect the main flex cable from the left daughterboard.

  23. Huawei Mate 20 Pro Battery Replacement: étape 23, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 23, image 2 de 2
    • Slide the flat end of a spudger under the right side of the main flex cable next to the charging port.

    • Use the spudger to pry up the main flex cable and to lever the charging port out of its recess.

  24. Huawei Mate 20 Pro Battery Replacement: étape 24, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 24, image 2 de 2
    • Remove the main flex cable including the charging port by lifting it upwards and then pulling it in the direction of the motherboard.

  25. Huawei Mate 20 Pro Battery Replacement, Battery: étape 25, image 1 de 2 Huawei Mate 20 Pro Battery Replacement, Battery: étape 25, image 2 de 2
    • Peel the orange adhesive strip labeled with a 1 off the battery. The orange adhesive tape will rip along a small perforated line.

  26. Huawei Mate 20 Pro Battery Replacement: étape 26, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 26, image 2 de 2
    • Peel the orange adhesive strip labeled with a 2 off the battery. The orange adhesive tape will rip along a small perforated line.

  27. Huawei Mate 20 Pro Battery Replacement: étape 27, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 27, image 2 de 2
    • Peel the orange adhesive strip labeled with a 3 off the battery.

    • Pull up the orange adhesive strip to lift the battery out of its recess.

    • Although these new adhesive tabs are supposed to make the battery removal easier, these may require some force. In case you're having trouble removing the battery, you can apply a heated iOpener to the center of the display, to loosen the adhesive underneath.

  28. Huawei Mate 20 Pro Battery Replacement: étape 28, image 1 de 3 Huawei Mate 20 Pro Battery Replacement: étape 28, image 2 de 3 Huawei Mate 20 Pro Battery Replacement: étape 28, image 3 de 3
    • Swing the battery up to an upright position.

    • Peel the battery off the remaining adhesive.

    • Remove the battery.

    • During re-assembly, temporarily re-connect the battery to the motherboard to help align it correctly. Disconnect the battery after it is seated.

  29. Huawei Mate 20 Pro Battery Replacement: étape 29, image 1 de 2 Huawei Mate 20 Pro Battery Replacement: étape 29, image 2 de 2
    • Peel the battery's adhesive sticker off the midframe.

    • This step is mandatory if you are replacing the screen. However it is highly recommended to use a fresh adhesive sticker as well, when installing a new battery.

    • 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 phone at the places where the old adhesive was located, not directly onto the battery. Press the new battery firmly into place.

Conclusion

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 two more hours. Then, use it 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? Check out our Answers community for troubleshooting help.

11 autres ont terminé cette réparation.

Dominik Schnabelrauch

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17 commentaires

I have tried this with two new batteries now. I believe the device was water damaged by plugging the charger in while there was moisture in the port. The existing battery works but doesn't fast charge and gets very hot when charging, the battery also drains extremely quickly. Everytime insert a new battery the phone just get stuck in a boot loop, bringing up the Huawei powered by android screen before restarting, I have also replaced the charging port in hopes that may of been damaged and was causing the issue but this didn't work either. Any suggestion?

Joel Celnik - Réponse

Excellent Step by step guide thank you

Labony Kitchen - Réponse

Mate 20 battery has a serial number and is locked to the device. Replace it and get bootlooping confirmed on more than 5 devices so far. Don't understand why this isn't more common knowledge. I've had to do battery pcb swaps for a year now.

Alex Jax - Réponse

Battery replacement also results in Bootloop here - factory reset not helping. Safe mode also not working.

Nick Ceo - Réponse

I solved it by reusing the board at the base of the battery body

T,hisa - Réponse

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