Removing the screen on Xiaomi smartphones is a challenge that owners face when replacing a display, touchscreen or battery. The procedure requires care, since one wrong movement can damage the plumes, microphone or even the motherboard. In this article, we will analyze the step-by-step algorithm for Redmi, POCO and Mi models, specify the necessary tools and warn of typical errors.
It's important to understand that Xiaomi's screen design varies depending on the series, like the Redmi Note 10 has a display glued to the frame, and the POCO F3 has a latch attachment with an additional adhesive layer, and we'll take these nuances into account and give recommendations for different generations of devices, and if you've never taken your smartphone apart, you'd better practice on a non-working machine or go to a service center.
Preparation for dismantling: tools and security measures
Before you take a screen on Xiaomi, prepare your workspace, use a table with good lighting and an antistatic mat to avoid static electricity damage to your electronics.
- π§ Plastic mediators (2-3 pieces) - for careful undersizing of the body.
- π¨ Screwdriver. T3/T4/T5 β for different diameters (most often) T3).
- π§² Magnetic mat or tray β so as not to lose small details.
- π₯ Hair dryer or thermoplatform - for softening the glue (temperature 60-80)Β°C).
- π§΄ Isopropyl alcohol 90%+ β glue-cleaner.
- π± Suction - to fix the screen when lifting.
If you have a waterproof model (such as the Xiaomi 12 Pro or Redmi Note 11 Pro+), be prepared for the glue to be more durable, in which case you can not do without heating, also check if the warranty has expired - self-repair cancels it.
β οΈ Warning: Do not use metal tools to tweak the screen - they can damage the plumes or leave scratches on the frame. Plastic mediators with a thickness of 0.1-0.2 mm are ideal.
Step 1: Shutting off power and removing the back cover
The first step is to shut down the smartphone completely, and even if the battery is dead, it's best to remove it (if possible without taking the screen off) or wait for it to run out completely.
- Heat the back cover with a hair dryer around the perimeter for 2-3 minutes. Keep the device at a distance of 5-7 cm, so as not to overheat.
- Insert a plastic mediator into the gap between the lid and the case (start at the bottom edge where the connectors are located).
- Carefully drive the mediator along the edge, separating the lid, and if you feel resistance, reheat the problem area.
The POCO X3 and Redmi Note 9 have a lid attached to the latches, so you can remove it without heating, but with effort. The Mi 11 Ultra has a lid glued, and you can't do without a hairdryer. Once you remove the lid, you put it aside, it's fragile and can crack if you don't handle it carefully.
βοΈ Preparation for lid removal
Step 2: Disconnect the battery and plumes
When you take the lid off, you'll see the battery covered by a protective film, and the first rule is that you need to turn off the battery before you manipulate the screen.
- Find the battery connector (usually located at the bottom of the board).
- Carefully put the connector on a plastic picker or tweezers.
- If the connector is glued, drop on it with isopropyl alcohol and wait 10 seconds.
Then disconnect the screen and touchscreen plumes, which are usually located under metal protective plates that are attached to the screws. The screws can be of different sizes, so remember which one you screwed from. For example, the Redmi Note 10 Pro has a display plume on the right of the battery, and the POCO F3 has a display plume on the left.
| Model | Screen plume location | Type of lid attachment |
|---|---|---|
| Redmi Note 8/9 | Right of the battery. | Latches + glue |
| POCO X3/X3 Pro | Left of the battery. | Latches |
| Mi 11/12 | Under the metal plate | Glue + latches |
| Redmi K40/K50 | At the top of the board | Clay. |
β οΈ Warning: If the phone still reacts to the presses after the battery is turned off (for example, vibrates), then the battery is not completely disconnected.
Step 3: Heating and removing the screen
Now, the most important step is to separate the screen from the body, and it's important not to overheat the display above 80.Β°C, otherwise. OLED-The matrix can fail:
- Heat the screen with a hair dryer around the perimeter (starting at the bottom edge) for 3-5 minutes. Keep the hair dryer at a distance of 5-7 cm.
- Stick the suction cup to the bottom of the screen (where the charging connector is located).
- Carefully pull the suction cup up while simultaneously swiping the plastic mediator along the edge of the screen.
- If the screen fails, heat the problem area again. Don't force it, you can damage the plumes!
For curved screen models (such as the Mi 11 Ultra or Redmi K60 Pro), the process is complicated β the glue is stronger and the display is thinner, in which case it is recommended to use a temperature-adjustable thermoplatform (60-70 Β° C) and special levers for removing the screen.
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If the screen cracks, stick tape on it before heating - this will prevent fragments from entering the body.
Step 4: Disconnect the display and touchscreen plumes
Once the screen has separated from the body, it needs to be completely disconnected from the board.
- Carefully flip the screen (without tearing it off completely) and find the plumes going to the motherboard.
- Unscrew the screws that fix metal plates over the plumes.
- Put the plume connectors in a plastic mediator, don't pull the plumes themselves!
Some models (like the POCO F4 GT) have screen and touchscreen plumes combined into one connector, while others (like the Redmi Note 11) have separate ones. If you change only the touchscreen, beware: the display plume is very fragile and can break if you handle it carelessly.
What to do if the plume is broken?
Common Mistakes and How to Avoid Them
Even experienced craftsmen sometimes make mistakes when taking a screen, and here are the most common ones and ways to prevent them:
- π₯ Overheating of the screen - leads to detachment of the polarization film (on the OLED-Solution: Use a thermometer and don't exceed 80.Β°C.
- π§ The plume damage happens when you take the screen apart. Solution: heat the glue evenly and use mediators.
- π§ If you put alcohol on a board, it can cause corrosion. Solution: just put it on the glue, not the contacts.
- β‘ Short circuit -- if you forgot to turn off the battery. Solution: always check the battery connector.
Another common problem is that the frames are damaged when you're underdog, and the Redmi Note 10S and POCO X3 NFC have plastic frames that can burst if you push too hard, and if the frame is cracked, you can replace it separately, but that makes it harder to build.
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The most common reason for a screen to fail after a repair is that the plumes are not connected correctly. Always make sure that the connectors are locked before you click.
Build the phone after changing the screen
Once you have a new screen or touchscreen installed, you need to put the phone back together in reverse order.
- Make sure all the plumes are connected correctly and not twisted.
- Apply a new adhesive layer on the frame (use 3M double-sided tape or B-7000 liquid adhesive).
- Carefully press the screen against the body, starting from the top edge.
- So, turn all the stains (not to be worn).
- Connect the battery and check the screen before final assembly.
If the screen does not respond to touch or displays artifacts after assembly, check:
- The density of the plumes fit (sometimes they fall out during assembly).
- Integrity of the adhesive layer (air bubbles can cause white spots on OLED).
- Correct battery connection (insufficient power can cause flickering).
The models with AMOLED-displays (e.g. Xiaomi 13 or Redmi) K50 Pro) after changing the screen, you may need to calibrate the color through the service menu. To do this, enter the code ##6484## and select Manual Test β Display.