Xiaomi’s modern smartphones are famous for their excellent specs, but their glass cases and large screens are vulnerable to falls. When cracks or stripes appear on the matrix and the touchscreen stops responding to touch, the only way out is to replace the module. Many users wonder how to remove the Xiaomi display yourself to save on the services of the service center.
The dismantling process requires accuracy, the right tools and an understanding of the design of the device. In this article, we will discuss the steps of work, the nuances of turning off the plumes and the specifics of the adhesive base in different models. It is important to understand that any interference with the design of the gadget carries risks, so follow the instructions carefully.
Before you start, you need to prepare the workplace and make sure you have all the tools you need. Xiaomi dismantling is a piece of jewelry where rushing can damage internal components. We'll look at the universal principles that apply to most models, from the budget Redmi to the flagship Mi.
Preparation of the workplace and tools
You'll need a special set of tools that you can buy from electronics or radio parts stores, the main tool will be the heating element, because modern smartphones are assembled with heat glue, a normal hair dryer will not work, you need a thermal station or a special heater.
Suction cups to lift glass, plastic mediators and thin metal blades will also be required. Metal tools should be used with extreme caution to avoid damaging. OLED-You'll need a set of screwdrivers with different sizes of cross bits to work with screws, often this is a lot of things. PH00 or PH000.
- 🔧 Thermostation or heating pad for softening glue.
- 🔧 Set of suction cups of different diameters.
- 🔧 Plastic blades and mediators.
- 🔧 Tweezers with curved ends.
⚠️ Warning: Before starting any work, be sure to turn off the device. Attempting to remove the display on the phone on can lead to a short circuit and failure of the motherboard.
Don't forget to prepare the screw folding container, because they can be of different lengths and threads. If you mix the screws up when you build them, you can damage the thread in the case or break through the board with a long screw, and the organization of the process greatly reduces the risk of errors.
☑️ Disassembly tools
Diagnostics and determination of the display type
Before you start to physically impact, you need to accurately determine the type of screen installed. Xiaomi smartphones can use IPS-matrix with a separate touchscreen or single modules AMOLED, depending on the complexity of the procedure and the likelihood of successful replacement of only glass.
If you're a model with IPS-And you can often just replace the top glass with the screen, and you can keep the matrix. AMOLED-With displays that are glued all over the area, self-gluing glass is almost impossible at home.
Visual inspection can help to identify the nature of the damage, if the image is, but the touch screen is not working, or vice versa, the picture is missing, but the phone responds to touch, this indicates a partial failure. The complete absence of image and backlight when the phone is on often indicates damage to the plume or the matrix itself.
For accurate diagnosis, you can connect your phone to an external monitor via a USB-C to HDMI adapter if the model supports video output, which will allow you to see the system interface even when the screen is broken and make sure that the video controller and processor are working.
The process of heating and removing the back cover
Most modern Xiaomi models have a perimeter-stick back cover. To remove it safely, you need to warm up the edges of the device evenly. The heating temperature is usually 80-90 degrees Celsius, and the exposure time is 3-5 minutes.
After warming up, gently insert the suction cup into the bottom of the lid and pull up slightly, creating a gap. Insert a plastic mediator into the resulting gap and start leading it along the perimeter, cutting the adhesive layer. Don't use force if the lid does not lend itself, it is better to reheat it.
Pay special attention to the areas around the camera module and the fingerprint scanner, if it's embedded in the lid. The plumes of these components can be glued to the inside of the glass and require careful deactivation after the lid is removed. Patience at this stage is critical.
| Model | Type of lid attachment | Heating temperature | Features |
|---|---|---|---|
| Redmi Note 9 | Perimeter glue | 85°C | Scanner in the button |
| Xiaomi Mi 11 | Strong glue | 90°C | Glass, fragile. |
| Poco X3 | Glue + screws | 80°C | Plastic cover |
| Redmi 9A | Clay. | 80°C | Budget segment |
If the lid is glass, the risk of damage is very high. The movement of the mediator should be smooth, without jerking. In some cases, for example, when replacing the display with a Xiaomi Mi Mix, the lid must be removed first, which requires special care.
Dismantling of body elements and protection of board
When the back cover is removed, you can access the insides of the smartphone, and the first thing you need to do is turn off the battery, which is a key safety rule that will prevent short circuits from breaking off the display plumes.
Next, unscrew all the visible screws that lock the protective plastic slats, which can be located around the perimeter of the board, near the charging connectors and on the main camera module, fold the screws in the order of their removal, as they can vary in length.
- 🔋 Turn off the battery plume first.
- 🔋 Remove plastic protective screens.
- 🔋 Unscrew the board attachment screws.
- 🔋 Check for hidden screws under stickers.
⚠️ Warning: Some screws may be hidden under warranty stickers or decorative elements. Carefully inspect the case from all sides in good lighting.
Once all the mounts are removed, carefully remove the motherboard. In some models, it can be locked in the slots. Don't pull the plume fee, first release all the connectors. Often you need to remove the top plastic frame, which is held on the glue and latches.
Hidden screws.
Disabling plumes and removing the display
This is the most critical stage in deciding whether Xiaomi will be able to remove the display without damage: the display plumes are connected to the motherboard or to an intermediate board (pallet), connectors can be of different types: clamping, snapping or side-locking.
To turn off, use a plastic blade or dielectric-coated tweezers, or peel the connector straight from the bottom or behind a special tongue if it is designed, and you can't pull the plume itself, which will cause it to break and not be able to recover.
If the display is glued to the frame, it needs to be warmed up in the same way as the back cover. The movements of the string or blade should be horizontal, cutting the glue layer. Try not to press on the center of the screen, so as not to crush the matrix, especially if it has already cracked.
Sequence of disconnection:
1. Battery.
Display plume (main)
3. Touchscreen plume (if separate)
4. Lower board plumeIn Curved displays, dismantling is complicated by bending the plume under the frame, often requiring complete removal of the frame or careful uncoupling of the plume from the side face. Use isopropyl alcohol to dissolve the glue in hard-to-reach areas.
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Use isopropyl alcohol to dissolve the glue, which is safe for electronics and evaporates quickly without leaving any traces.
Installation of a new module and assembly
Before you install a new display, be sure to do a test. Connect the new module's plumes to the board without gluing it, and start the phone. Check the touchscreen, the presence of broken pixels and color reproduction. This will save time if the new screen is defective.
To fix the new module, use a special glue B-7000 or double-sided tape, removing the remnants of old glue from the frame. The frame must be thoroughly cleaned, degreased and aligned to make the new screen fit perfectly smoothly.
- 🧹 Clean the frame of the old glue.
- 🧹 Degrease the surface with alcohol.
- 🧹 Apply the new glue with a thin layer.
- 🧹 Press the module and lock with rubber bands.
The assembly is reversed, the display is installed first, the plumes are connected, the motherboard is put in place, and the protective slats are closed, and only after checking all the connections, you can plug the battery in and close the back cover.
⚠️ Warning: Do not turn on the phone immediately after assembly if you have used liquid glue. 1-2 hours, fixing the body with rubber bands or cargo.
The final step is to check the leakproofness (if any) and functionality of all sensors, the proximity, lighting and fingerprint must work correctly, and if all systems are normal, the repair can be considered successful.
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The main secret of success is a qualitative cleaning of the frame from the old glue and the correct connection of the plumes to the final assembly.