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Introduction

Use this guide to replace a worn-out or dead battery in your Huawei Honor 8.

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. Huawei Honor 8 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 rear glass. Apply the iOpener for at least two minutes.

  2. Huawei Honor 8 Battery Replacement: étape 2, image 1 de 3 Huawei Honor 8 Battery Replacement: étape 2, image 2 de 3 Huawei Honor 8 Battery Replacement: étape 2, image 3 de 3
    • If the phone's rear glass is cracked, the suction cup may not stick. Try lifting it with strong tape, or superglue the suction cup in place and allow it to cure so you can proceed.

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

    • Lift the rear glass with the suction cup to create a small gap between the glass 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 Honor 8 Battery Replacement: étape 3, image 1 de 2 Huawei Honor 8 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 Honor 8 Battery Replacement: étape 4, image 1 de 3 Huawei Honor 8 Battery Replacement: étape 4, image 2 de 3 Huawei Honor 8 Battery Replacement: étape 4, image 3 de 3
    • The fingerprint cable is located above the power and volume buttons on this side of the phone. Only use the tip of the opening pick in this area to avoid damage.

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

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

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

  5. Huawei Honor 8 Battery Replacement: étape 5, image 1 de 2 Huawei Honor 8 Battery Replacement: étape 5, image 2 de 2
    • If the adhesive gets hard to cut it most likely cooled down. Use your iOpener to reheat it.

    • Insert a fourth opening pick under the top left corner of the rear glass.

    • 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 Honor 8 Battery Replacement: étape 6, image 1 de 2 Huawei Honor 8 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.

    • The fingerprint cable is still connected to the motherboard. Don't try to remove the rear glass all the way yet.

  7. Huawei Honor 8 Battery Replacement: étape 7, image 1 de 2 Huawei Honor 8 Battery Replacement: étape 7, image 2 de 2
    • Carefully lift the rear glass and fold it to the left side of the Honor 8.

  8. Huawei Honor 8 Battery Replacement: étape 8, image 1 de 1
    • Remove the Phillips #00 screw (2.8 mm length) that secures the metal bracket on top of the fingerprint flex connector.

  9. Huawei Honor 8 Battery Replacement: étape 9, image 1 de 2 Huawei Honor 8 Battery Replacement: étape 9, image 2 de 2
    • Use a pair of tweezers to remove the metal bracket that sits on top of the fingerprint and display flex connectors.

  10. Huawei Honor 8 Battery Replacement: étape 10, image 1 de 2 Huawei Honor 8 Battery Replacement: étape 10, image 2 de 2
    • Use a spudger to pry up and disconnect the fingerprint flex connector.

  11. Huawei Honor 8 Battery Replacement, Midframe Bezel: étape 11, image 1 de 1
    • Remove these Phillips #00 screws securing the midframe bezel:

    • Eight screws with 3.5 mm length

    • Eight screws with 2.9 mm length

    • Some screws might be covered with a tamper proof sticker.

  12. Huawei Honor 8 Battery Replacement: étape 12, image 1 de 3 Huawei Honor 8 Battery Replacement: étape 12, image 2 de 3 Huawei Honor 8 Battery Replacement: étape 12, image 3 de 3
    • Insert an opening pick underneath the top right edge of the midframe bezel.

    • Use the opening pick to pry up the midframe bezel.

    • Insert the opening pick underneath the bottom left corner of the bezel and pry it up.

  13. Huawei Honor 8 Battery Replacement: étape 13, image 1 de 2 Huawei Honor 8 Battery Replacement: étape 13, image 2 de 2
    • Insert the long edge of an opening pick in the seam between the midframe and the bezel on the left side of the phone.

    • Slide the opening pick along the left side of the phone to cut the adhesive underneath the midframe bezel.

  14. Huawei Honor 8 Battery Replacement: étape 14, image 1 de 2 Huawei Honor 8 Battery Replacement: étape 14, image 2 de 2
    • Repeat the procedure on the right edge of the phone to cut the adhesive underneath the midframe bezel.

  15. Huawei Honor 8 Battery Replacement: étape 15, image 1 de 2 Huawei Honor 8 Battery Replacement: étape 15, image 2 de 2
    • Carefully grasp the midframe bezel from the bottom corners and lift it upwards.

    • Remove the midframe bezel.

  16. Huawei Honor 8 Battery Replacement, Battery Disconnect: étape 16, image 1 de 2 Huawei Honor 8 Battery Replacement, Battery Disconnect: étape 16, image 2 de 2
    • Use a spudger to pry up and disconnect the battery flex cable.

  17. Huawei Honor 8 Battery Replacement, Battery: étape 17, image 1 de 3 Huawei Honor 8 Battery Replacement, Battery: étape 17, image 2 de 3 Huawei Honor 8 Battery Replacement, Battery: étape 17, image 3 de 3
    • Use a pair of tweezers to lift the black adhesive pull tab off of the top right corner of the battery.

    • Use a pair of tweezers to pull out the adhesive strip.

    • Make sure you pull out the strip in a slow and steady motion and in a flat angle. To prevent the adhesive strip from ripping, it is helpful to twist the strip around the tweezers during the removal process.

    • In case the adhesive strip rips, follow the next three steps.

  18. Huawei Honor 8 Battery Replacement: étape 18, image 1 de 2 Huawei Honor 8 Battery Replacement: étape 18, image 2 de 2
    • Apply a heated iOpener to the screen for at least two minutes to loosen the adhesive beneath the battery.

    • The adhesive beneath the battery is very strong. You might need to repeat this process during the removal procedure several times. If heat does not work you can apply isopropyl alcohol (>90%) to the corners of the battery and let it penetrate the adhesive for several minutes before continuing.

    • The flex cables underneath the battery are laid out as shown in the image. Try to avoid prying close to the marked areas to prevent damaging the cables.

    • Display flex cable

    • Interconnect flex cable

  19. Huawei Honor 8 Battery Replacement: étape 19, image 1 de 2 Huawei Honor 8 Battery Replacement: étape 19, image 2 de 2
    • Try to deform the battery as little as possible during the following 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 an opening pick or a plastic card under the battery where the adhesive strip was located.

    • Slide along the right side of the battery to cut the remaining adhesive.

    • Carefully pry up the right side of the battery to loosen the adhesive.

  20. Huawei Honor 8 Battery Replacement: étape 20, image 1 de 2 Huawei Honor 8 Battery Replacement: étape 20, image 2 de 2
    • The display flex cable and interconnect flex cable run underneath the battery. Be careful not to damage them while cutting the remaining adhesive.

    • Slide a plastic card underneath the battery and cut the remaining adhesive between the flex cables and underneath the left side of the battery.

  21. Huawei Honor 8 Battery Replacement: étape 21, image 1 de 2 Huawei Honor 8 Battery Replacement: étape 21, image 2 de 2
    • Remove the battery.

    • Do not reuse the battery after it has been removed, as doing so is a potential safety hazard. Replace it with a new battery.

    • 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 phone and test your repair before installing new adhesive and resealing the phone.

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.

To reassemble your device, follow these instructions in reverse order.

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.

21 autres ont terminé cette réparation.

Dominik Schnabelrauch

Membre depuis le 23/11/2016

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9 commentaires

Had great success using a hair dryer instead of the iOpener. Possibly it wasn’t hot enough? Hiw maby Watts do you recommend?

Rhoshy - Réponse

If you use isopropyl alcohol to dissolve the adhesive and remove the battery make sure it doesn’t go towards the screen (as the phone is likely going to be facing down) and that it dries completely before closing up the phone again.

I made the mistake of leaving the phone - although still opened - face down overnight and the alcohol seems to have gotten into the screen, causing bubbles and discoloring on the screen.

Emiliano - Réponse

Thank you very much for this guide, great help! I also changed the usb port and had to watch the guide for that also :) Took some more time for a firt timer hehe, Also I did not have the pre cut adhesive, only 3 mm. I will probably find one and order it.

Christoffer Johansson - Réponse

Very good guide, thanks a lot! I didn’t have the iOpener, so, I used very hot water in a ziplock bag and it worked great.

André Tousch - Réponse

Very good guide, but actually, I didn’t even need to remove the circuit board. With enough warmth from the iOpener on the display side and cautiously working with all the picks, I was able to remove the battery right after removing the middle frame.

Nicolas Rieger - Réponse

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