Introduction
Use this guide to replace a cracked or broken screen on your Xiaomi Poco M3.
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 phone’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 phone, 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 for this phone 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.
You’ll need replacement adhesive to reattach components when reassembling the device.
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Insert a SIM card eject tool or a paperclip into the small hole in the SIM card tray, located near the top left corner of the Poco M3.
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Press firmly to eject the SIM card tray.
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Remove the SIM card tray from the phone by pulling it out of the phone assembly.
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Insert a spudger into the charging port at a steep angle.
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Use the spudger to create a gap between the phone assembly and the back cover by prying the back cover away from the bottom edge of the screen.
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Insert an opening pick into the gap between the phone assembly and the back cover.
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Remove the spudger.
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Slide the opening pick to the bottom left corner of the phone to release the plastic clips holding the back cover in place.
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Slide the opening pick around the bottom left corner.
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Insert another opening pick into the gap at the bottom edge of your phone.
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Slide the opening pick around the bottom right corner to release the plastic clips securing the back cover.
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Slide the opening pick along the right edge of the phone to release the remaining plastic clips. Stop just below the fingerprint reader.
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Use a Phillips #00 screwdriver to remove the ten 3.9 mm-long screws.
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Slide an opening pick under the bottom right corner of the motherboard cover.
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Slide the opening pick along the right edge of the motherboard cover to release the plastic clips holding it in place.
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At the top right corner, twist the opening pick countercockwise to pry up the motherboard cover.
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Use the flat end of a spudger to pry up and disconnect the fingerprint sensor cable at the bottom left corner of the motherboard.
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Remove the back cover assembly.
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Use the flat end of a spudger to pry up and disconnect the battery cable at the bottom right corner of the motherboard.
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Use a pair of blunt nose tweezers or a clean fingernail to peel the top edge of the orange adhesive strip labeled with an A off the battery.
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Use a pair of blunt nose tweezers or a clean fingernail to peel the bottom edge of the orange adhesive strip labeled with an A off the battery.
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Fold down the adhesive strip labeled with an A.
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Use a pair of blunt nose tweezers or a clean fingernail the orange adhesive strip labeled with a B off the battery.
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Grab both corners of the orange adhesive strip labeled with an A.
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Pull upwards to lift the battery out of its recess and swing it 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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Use the flat end of a spudger to disconnect the main display flex cable.
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Use a pair of blunt nose tweezers to peel the main display flex cable off the midframe.
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Use a Phillips #00 screwdriver to remove the seven 3.9 mm-long screws.
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Insert an opening pick underneath the bottom right corner of the loudspeaker assembly.
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Use the opening to pry the loudspeaker assembly out of its recess.
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Remove the loudspeaker assembly.
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Use the flat end of a spudger to disconnect the digitizer flex cable.
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Apply a heated iOpener 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 phone.
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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 the tip of an opening pick in the gap between the midframe and the screen.
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Slide the opening pick to the bottom right corner to cut the adhesive. Leave it in its place to prevent the adhesive from resealing.
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Insert a second opening pick and slide it to the bottom left corner of the screen to cut the adhesive.
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Leave the opening picks in to prevent the adhesive from resealing.
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Thread the digitizer flex cable through the gap in the midframe.
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Thread the display flex cable through the gap in the midframe and remove the screen.
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If possible, turn on your device and test your repair before installing new adhesive and resealing.
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.
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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