Einleitung
Use this guide to remove or replace the screen on your Huawei P40 Pro.
If the frame is deformed, it's important to replace it to make sure the new screen will mount correctly and won’t suffer damage from uneven pressure.
Due to the device’s design, you must remove the lithium-ion battery to access the display cables. If the battery was deformed during removal replace it with a new one—reusing a deformed battery is a potential safety hazard.
Before disassembling your device, discharge the battery below 25%. The battery can catch fire and/or explode if accidentally punctured, but the chances of that happening are much lower if discharged.
Note: This guide instructs you to replace only the screen while leaving the original frame and motherboard in place. However, some replacement screens come pre-installed in a new frame (a.k.a. chassis), which requires a very different procedure. Make sure you have the correct part before starting this guide.
Before you begin this procedure, be sure to have replacement adhesives for the back panel, battery and the screen (depending on your replacement part you will need adhesive for the earpiece speaker module as well).
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Apply a heated iOpener to the rear glass to loosen the adhesive underneath. Apply the iOpener for at least two minutes.
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Secure a suction handle to the bottom edge of the rear glass, as close to the curved edge as possible.
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Lift the back cover with the suction handle to create a small gap between the back cover and the frame.
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Insert an iMac opening wheel into the gap.
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Slide the opening wheel to the bottom left corner to slice the adhesive.
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Insert an opening pick into the gap between rear glass and frame at the bottom left corner of your phone to prevent the adhesive from resealing.
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Reinsert the opening wheel at the bottom edge of the rear glass.
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Slide the opening wheel to the bottom right corner to slice the adhesive.
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Insert an opening pick underneath the bottom right corner of the rear glass, next to the opening wheel to prevent the adhesive from resealing.
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Insert the opening wheel underneath the bottom left corner of the rear glass.
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Slide the opening wheel along the left edge of your Huawei P40 Pro to cut the adhesive.
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Insert an opening pick underneath the top left corner of the rear glass, next to the opening wheel to prevent the adhesive from resealing.
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Insert the opening wheel underneath the top left corner of the rear glass.
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Slide the opening wheel along the top edge of your phone to cut the adhesive.
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Insert an opening pick underneath the top right corner of the rear glass, next to the opening wheel to prevent the adhesive from resealing
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Insert the opening wheel underneath the top right corner of the rear glass.
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Slide the opening wheel along the right edge of your phone to cut the remaining adhesive.
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Slide an opening pick underneath the bottom right corner of the protective foil.
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Use the opening pick to gently peel the protective foil off the daughterboard cover.
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Repeat the previous procedure to peel the bottom left protective foil corner off the speaker.
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Slide an opening pick underneath the bottom left corner of the plastic midframe.
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Slide the opening pick along the left edge of the midframe to release the plastic clips holding it in place.
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Insert the tip of an opening pick at the top edge of the midframe next to the top left corner.
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Tilt the opening pick downwards to pop the plastic clips out of their sockets.
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Slide the opening pick along the top edge of the midframe to release the remaining plastic clips.
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Use the flat end of a spudger to pry up and disconnect the interconnect cable.
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Use the flat end of a spudger to pry up and disconnect the battery cable.
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Use a spudger tor pry up and disconnect the antenna flex cable.
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Fold the antenna cable to the side to avoid damaging it during the battery removal.
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Fold the interconnect flex cable toward the charging port in order to get access to the battery pull tabs.
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Use a pair of blunt nose tweezers or a clean fingernail to peel the orange adhesive strip labelled with a 1 off the battery.
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Use a pair of blunt nose tweezers or a clean fingernail to peel the orange adhesive strip labelled with a 2 off the battery.
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Peel the orange adhesive strip labelled with a 3 off the battery.
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Pull up on the orange adhesive strip to lift the battery out of its recess and swing it up to an upright position.
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Peel the battery off the remaining adhesive.
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Remove the battery.
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Peel the battery's adhesive sticker off the midframe.
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Use a spudger to disconnect the display flex cable from the motherboard by prying the connector straight up from its socket.
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The display flex cable is adhered to the midframe with mild adhesive. Use a pair of tweezers or your fingers to carefully peel it off.
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Apply a heated iOpener or a heat gun to the screen to loosen the adhesive underneath. Apply the iOpener for at least two minutes.
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Once the screen is warm to touch, apply a suction cup to the bottom edge of the screen.
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Lift the screen with the suction handle to create a small gap between the screen and the frame.
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Insert an iFlex in the gap between the midframe and the screen.
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Slide the iFlex to the bottom left corner of the screen to slice its adhesive.
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Insert an opening pick next to the bottom left corner of the screen to prevent the adhesive from resealing.
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Relocate the iFlex to the center of the bottom edge and slide it to the bottom right corner of the screen to slice the display adhesive.
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Insert an opening pick next to the bottom right corner of the screen to prevent the adhesive from resealing.
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Insert the iFlex next to the bottom left corner of the screen.
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Slide the iFlex along the left edge of your Huawei P40 Pro to slice the adhesive.
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Insert an opening pick next to the top left corner of the screen to prevent the adhesive from resealing.
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Insert the iFlex next to the bottom right corner of the screen.
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Slide the iFlex along the right edge of your Huawei P40 Pro to slice the adhesive.
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Insert an opening pick next to the top right corner of the screen to prevent the adhesive from resealing.
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Insert the iFlex next to the top left corner of the screen.
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Slide the iFlex along the top edge of your phone to cut the remaining adhesive.
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Thread the display flex cable through the gap in the midframe and remove the screen.
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Slide an opening pick underneath the earpiece speaker module assembly.
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Use to opening pick to separate the earpiece speaker module assembly from the screen.
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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.
Apply new adhesive where necessary after cleaning the relevant areas with isopropyl alcohol (>90%).
The best way to secure the new screen is to apply a sheet of custom-cut double-sided tape to the back of the screen.
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.
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.
Apply new adhesive where necessary after cleaning the relevant areas with isopropyl alcohol (>90%).
The best way to secure the new screen is to apply a sheet of custom-cut double-sided tape to the back of the screen.
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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