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Use this guide to remove or replace the rear glass of the Huawei P20.
Opening the Huawei P20 will damage the splash and dust protection seals on the device. If you do not replace the adhesive seals, your phone will function normally but will lose its protection.
You’ll need replacement adhesive to reattach components when reassembling the device.
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Before you begin, switch off your phone.
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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.
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Secure a suction handle to the bottom of the back cover, as close to the edge as possible.
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Lift the back cover with the suction handle to create a small gap between the cover and the frame.
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Insert an opening pick into the gap.
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If you have trouble, apply more heat to further soften the adhesive. Follow the iOpener instructions to avoid overheating.
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Slide the opening pick to the bottom right corner.
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Insert a second opening pick and slide it to the bottom left corner to cut the adhesive.
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Leave the opening picks in place to prevent the adhesive from resealing.
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Insert a third opening pick at the bottom left corner.
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Start to slide the tip of the opening pick from the bottom left corner along the side of the phone to cut the adhesive.
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Leave the opening pick in its place at the top left corner to prevent the adhesive from resealing.
Davor auch aufpassen da ist das Flexkabel des powerbuttons
Hi Maximilian,
danke für deinen Hinweis. Du hast vollkommen Recht und ich habe den Warnhinweis entsprechend ergänzt.
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If the adhesive becomes hard to cut it most likely cooled down. Use your iOpener to reheat it.
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Insert a fourth opening pick under the top left corner of the back cover.
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Slide the opening pick along the top edge of the phone to cut the adhesive.
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Leave the opening pick in the top right corner to prevent the adhesive from resealing.
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Insert a fifth opening pick at the top right corner of the phone.
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Slide the opening pick along the right side to cut the remaining adhesive.
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Lift and remove the back cover.
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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.
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Secure the new back cover with pre-cut adhesive or double-sided adhesive tape.
To reassemble your device, follow these instructions in reverse order.
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.
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.
Secure the new back cover with pre-cut adhesive or double-sided adhesive tape.
To reassemble your device, follow these instructions in reverse order.
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.
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.
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Hi Dominic, nice guide
What size of adhesive should be used?
Bonjour, j'ai un nappe qui était sur l'ancienne vitre arrière et je ne la vois pas dans ce tuto 😅
Je tâcher de tout bien remettre en place mais j'aimerais bien comprendre à quoi elle sert.
Merci d'avance et bravo pour votre travail, vous êtes géniaux 👍
Hi guys fingerprint sensor on my Huawei p20 Pro stopped working but I didnt want to attempt screen removal as the chances of damaging the screen were high, but what if I could remove and replace the sensor without removing the screen at £6.00 a pop on ebay for a replacement sensor against a ton plus for a new screen, I opted to take a chance with the sensor, so I removed battery cover glass then all removable parts in the sensor area, once removed I could see a big enough gap to feed the sensor through, now the tricky part I smeared vaseline on the area of the sensor ribbon that fitted between frame and screen and carefully slid it between the frame and screen, now all that was left was to connect the sensor to the connector, there was no way that I could see to slide the ribbon under the frame to connect it so I laid it over that part of frame and connected it to the screen, before I replaced the sensor the phone wouldn't recognise it at all so I was relieved that it detected it now. Works perfectly.
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