Xiaomi’s modern smartphones and its Redmi sub-brand are renowned for their availability and high performance, but over time, even the most reliable devices require maintenance. Most often, the need to open the device occurs when replacing a broken screen, installing a new battery or cleaning the speaker from dust. The procedure for dismantling the rear panel is the first and most important step on which the success of the entire repair depends. Wrong actions at this stage can lead to damage to plumes, glass chips or violation of the sealed body.
It's important to understand that assembly technologies are constantly changing. Whereas in the past, the back covers on many models were removed simply by snapping the latches, today manufacturers are increasingly using adhesive joints to improve strength and protect against moisture. In this article, we will discuss in detail how to remove the lid on Xiaomi Redmi various series, what tools will be required and what nuances should be paid special attention to, so as not to turn a minor repair into a purchase of a new smartphone.
Before you start, you need to clearly identify the type of design of your device. There are models with removable batteries where the lid is fixed only to the latches, and monoblocks where the panel is glued around the perimeter. An error in determining the type of mounting can cost you the integrity of the case. Next, we will look at the necessary tools and step-by-step algorithm for safe disassembly.
Workplace preparation and necessary tools
A good smartphone disassembly is impossible without a properly prepared workplace. You'll need a table with good, uniform lighting to see small screws and plumes. The surface should be clean and flat, preferably covered with a special antistatic mat or at least a soft towel, so that fallen parts do not break or get lost.
To work with modern Xiaomi Redmi, you will need a specific set of tools that can be purchased in radio stores or marketplaces. The basic kit includes a suction cup to lift glass, a set of plastic mediators (scapulas), tweezers with curved ends and a set of screwdrivers. Particular attention should be paid to the quality of the plastic of mediators: too rigid can scratch the frame, and too soft – break inside the case.
☑️ Disassembly tools
Don't forget to prepare a screw sorting tank. When you disassemble your smartphone, you'll find fasteners of different lengths and diameters. If you screw a long screw into a hole designed for a short one, you can punch through the motherboard or damage the internal components. Labeling containers or using a magnetic mat with markings will help avoid fatal errors in reverse assembly.
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Use a magnetic screw mat or paper tape, on which you can stick the screws in order of their extraction, signing the disassembly step.
Features of the design of Xiaomi and Redmi
Xiaomi engineers use different build methods depending on the price segment and year of the device. Budget models such as the Redmi A series or older versions of the Redmi Note often feature plastic covers that are held on powerful plastic latches around the perimeter. In such cases, heating is almost not required, and the main risk is the failure of the latches themselves when the latches are unsettled.
That's a game-changer when it comes to models with glass or ceramic backs, like the Redmi Note 10 Pro or Redmi K40, which uses a special glue that only softens at about 80-90 degrees Celsius, and trying to remove the lid without first heating will destroy it. Glass is fragile, and mechanical action without heat preparation is unacceptable.
| Case material | Type of attachment | The need for heating | Risk of damage |
|---|---|---|---|
| Plastic (budget models) | Latchers | Minimum or absent | Low (clatch break) |
| Glass (middle segment) | Glue + latches | Definitely (80-90°C) | Tall (cracks, chips) |
| Ceramics (flagships) | Clay. | Definitely (long-term) | Very high (split) |
| Metal (Unibody) | Screws + glue | Required for the display | Medium (frame strain) |
Also worth mentioning are Unibody models, where the back cover is part of the frame and the insides are accessed through the removal of the display module, and in such cases, the question of how to remove the lid is transformed into how to remove the screen, which are more complex devices that require increased care, since the risk of damaging the matrix when opened is extremely high.
Why does Xiaomi use glue?
The procedure for heating and softening glue
If you've determined that your Redmi has a glue connection, the first step is to heat the perimeter of the device, which is ideal for a professional heater that warms the area evenly. However, in the home, you often use a household hair dryer. It's important to adjust the hair dryer to an average temperature and keep it at a distance of 5-7 cm from the surface, constantly moving so as not to overheat one point.
Heating time is usually 3 to 5 minutes, depending on the thickness of the glass and the type of glue. Periodically check the temperature by touching the surface with the back of your palm: the glass should become hot, but not burning. Excessive heating can damage the battery located immediately below the lid, or lead to detachment of the oleophobic coating and yellowness of the plastic frame.
⚠️ Warning: Never heat the area around the camera lens and fingerprint sensor too intensely.Plastic camera lenses and scanner adhesive bases can melt or deform, requiring expensive replacement of modules.
Once you've warmed up enough, you can start to create an initial gap. Use a suction cup by placing it at the bottom of the back cover, and pull it up slightly while inserting a thin metal probe or a rigid mediator into the resulting gap. If the lid fails, do not use force, repeat the heating procedure. A sharp jerking motion can split the glass diagonally.
Clicking and removing panel technique
Once the mediator or blade has entered the gap between the frame and the lid, the main stage of work begins: Your task is to go around the perimeter of the device, cutting the adhesive layer. The movements should be sliding, parallel to the plane of the smartphone. Don't try to pull the lid up like a lever, this is guaranteed to lead to cracks.
Be careful in the corners of the case and in the area where the plumes are located. Often the adhesive layer in the corners is thicker, and you need more active movement of the tool. If you feel resistance in a certain area, there may be a logo lighting plume or antenna contact, in which case you better make additional local heating.
For models with plastic lids on latches, the algorithm is simpler: find a technological groove (often hidden under a stub). SIM-You can use a card or a lower corner, and you can put a mediator in there, and you can use the tool along the side of the face to hear the characteristic clicks of the locks that are unfastening, and you can move smoothly, locking the already open areas with your fingers so that they don't snap back.
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The main rule of disassembling adhesive structures is constant heating and no vertical force.
Disabling the plumes and the final withdrawal
When the perimeter is free, don't be in a hurry to remove the lid completely. Inside, there may be plumes connecting the back panel to the motherboard. In modern Xiaomi Redmi, the lid often features a flash LED, proximity sensor, fingerprint scanner or NFC antenna pads. A sharp jerk will cause these thin conductors to break.
Carefully bend the lid and inspect the interior space, and if you see the plumes, they need to be turned off, and use a plastic blade or nail (with caution) to lift the connector lock up, and then remove the plume itself. Some models have a fingerprint scanner module glued on the inside, in which case the lid is removed with it, and the shutdown is done after complete dismantling.
After all communications are turned off, the back cover is considered removed, and put it in a safe place, preferably on a soft fabric, with the outside upwards to avoid scratching the glossy surface, and now you have access to the battery, the main board and other components for further repair or replacement.
⚠️ Attention: When working with plumes, never pull the wires themselves. Always take a hard connector or use a special hood. Thin conductive tracks inside the plume break instantly when you tense.
Frequent errors and precautions
One of the most common mistakes is ignoring the screws under the plugs. Many Redmi models at the bottom of the case, under the logo or under the IMEI sticker, can hide hidden screws. Trying to remove the lid without twisting them will lead to the failure of the thread or break the plastic racks. Always carefully inspect the case in good light before work begins.
Another problem is using metal tools (knives, scalpels) to pull the lid without insulation. Metal slips easily and can short contacts on the board if you have already partially opened the device, or leave deep scratches on the aluminum frame. If you use a metal probe to cut the glue, make sure that it does not touch the internal components deeper than necessary.
Keep static electricity in mind. Dry air and synthetic clothing can build up a charge that can disable sensitive smartphone electronics. It is advisable to touch a grounded metal object or use an antistatic bracelet before touching the internal boards.
⚠️ Warning: If you hear a crack or a crunch during the removal of the lid, stop immediately.This may mean the beginning of glass breaking or the internal plastic frame breaking. Evaluate the situation, additional heating or a change of tool input angle may be required.