Xiaomi’s current smartphones, whether the Redmi budget series or flagship models, often require disassembly to replace the battery, clean speakers or repair plumes. Unlike older foldable models, modern devices are assembled in the factory using powerful adhesives, making the process of opening the case a difficult engineering task.
If you choose to repair yourself, you need to be clear about the risks: Incorrect handling of tools can damage the display, tear plumes or, worst of all, a battery failure. This article details the algorithm of actions, the necessary tools and technical nuances that will help you safely remove the cover of the device.
Before you start physically affecting the case, make sure you prepare a workspace with good lighting. You will need a flat surface, free of unnecessary debris and dust, as even a small villi can get under the plume or into the charging connector. In addition, it is highly desirable to have an antistatic mat or just dry clean fabric.
Tools and training required
For successful removal of the back panel of a standard set of home tools will not be enough. the use of knives or metal blades is strictly prohibited, as they can damage the internal components or break glass. You will need specialized tools that will provide delicate effects on the adhesive layer.
The main tool for separating the body will be a plastic shoulder blade or mediator, which allows you to carefully poke the edges of the lid without leaving scratches on the frame or conducting electricity, and an indispensable assistant will be a suction cup, which will help create an initial gap between the body and the glass after warming up.
- 🔧 Plastic mediators and shoulder blades for opening the body.
- 🔥 Hair dryer for construction or household glue softening.
- 🧴 Isopropyl alcohol or special solvent B-7000.
- 🧲 Magnetic screw-sorting mat.
- 📱 Suction cup to create initial gap.
Be sure to take care of battery safety before any work related to disassembly, you need to completely turn off the device. If the smartphone is on, you risk shorting if the plume or the power source itself is accidentally damaged by a metal tool.
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Heat the body evenly, driving the hair dryer around the perimeter, rather than holding the jet at one point to avoid overheating. OLED-screen.
Technology of heating the case
A key step in the process of removing the Xiaomi cover is to warm up the perimeter of the device. The adhesive composition used by the manufacturer is a thermoactive polymer that softens at a temperature of about 70-80 degrees Celsius. Without sufficient heating, you simply crumble the glass or bend the metal frame.
Use a minimum temperature building dryer or a high-powered household dryer at maximum capacity. Keep the heat source 3-5 centimeters from the surface and move it evenly along all four faces of the smartphone, usually taking 2 to 5 minutes depending on the thickness of the glass and model.
⚠️ Warning: Don't overheat your smartphone! if the body becomes too hot for your hand (can't hold for longer than 2 seconds), stop heating. OLED-display or cause battery to swell.
After warming up, try to gently pull the suction cup up, creating tension. If the lid does not lend itself, repeat the heating procedure. Don't try to force the panel torn off if the glue has not softened yet - this is guaranteed to lead to cracks. Patience at this stage saves money on buying new glass.
Why can't you microwave?
Procedure for dismantling the back panel
When you've made sure that the body is sufficiently warm, the most critical moment comes: insert a plastic mediator or a thin spatula into the gap formed from the suction cup. The movements must be sliding, parallel to the plane of the screen, not perpendicular to it, so as not to push the display from the inside.
Start walking the perimeter of the device, and usually the glue holds the corners and areas close to the camera, and if the tool stops walking, don't use force, just pull it out, warm up the problem area again, and continue. It's important not to damage the fingerprint scanner plume if it's on the back.
☑️ Removal process
In some models, such as the Xiaomi Mi 9 or Redmi Note 8 Pro, the back cover can be glassy and quite brittle. When working with such models, it is recommended to use a thin line or a special string to cut the adhesive layer instead of blades if the gap is too small, this reduces the risk of mechanical pressure on the glass.
Once the lid is separated from the body, don't put it on the table right away. There may be a plume inside that connects the fingerprint scanner to the motherboard. Carefully inspect the interior of the removed panel. If the plume is present, it must be carefully deactivated by putting a plastic blade on the connector.
Features of different series of smartphones
Disassembly procedures can vary significantly depending on the series of devices. Xiaomi engineers use various design solutions, and knowing these nuances will help to avoid fatal errors. There is no universal method, although the general principle remains similar.
Redmi Note series models often have a plastic or composite back panel that is easier to dismantle but requires caution with latches.The flagship Mi and Xiaomi series (digital) are more often equipped with glass and may have additional moisture protection, requiring more thorough cleaning of old glue.
| Device series | Cover material | Location of the plume | Difficulty |
|---|---|---|---|
| Redmi (budget) | Plastic. | Often absent | Low. |
| Redmi Note | Glass/Plastic | Side or bottom. | Medium |
| Xiaomi Mi | Glass/ceramics | Central/Side | Tall. |
| Poco F/X | Glass. | Individually | Medium |