The need to open the case of a Xiaomi Pad or Redmi Pad tablet often occurs when the battery is damaged, the display breaks or moisture enters the device. Self-disassembly of the gadget requires not only accuracy, but also an understanding of the principles of assembly of modern tablets, where each element is tightly pressed and fixed. Before starting any manipulations, it is important to realize that violation of the factory seal automatically deprives the owner of the right to warranty service in authorized centers.
Xiaomi’s tablets are built using adhesives and many small screws hidden under decorative elements. The aluminium body of the Pad 5 or Pad 6 series is highly rigid, but very sensitive to mechanical stress when dismantled. Any careless movement can lead to dents or chips that cannot be removed without replacing the entire back cover.
In this article, we will take a closer look at the process of dismantling popular models, the necessary tools and precautions. You will learn how to safely disconnect the plumes, replace the battery and assemble the device back without losing functionality. Remember that depressurization of the case of the Xiaomi tablet often leads to detachment of the screen due to the loss of the adhesive layer, so preparation for reassembly should be done in advance.
Preparation of the workplace and the necessary tool
The success of the disassembly operation depends on the quality of preparation. You will need a set of precision screwdrivers (cross Pentalobe and Phillips), a plastic spatula, a suction cup and a thin metal mediator. The use of metal objects instead of plastic in the first stages is strictly prohibited, as it can damage antenna inserts or scratch the body.
Special attention should be paid to lighting and organization of space. Small screws are easily lost or confused, so it is recommended to use a magnetic mat or special containers with cells to sort the fastener by dismantling stages.
- 🛠️ A set of screwdrivers with magnetic tips for working with micro-screws.
- 🔥 Dryer or heat pad for uniform heating of the edges of the body.
- 📱 Plastic mediators and suction cup for safe opening.
- 🧴 Isopropyl alcohol and tweezers with curved ends.
⚠️ Warning: Before starting work, be sure to disconnect the tablet from the charger and wait for complete cooling if it has just been used.
Features of the design of Xiaomi tablets
Xiaomi engineers use a unified architecture for most of their devices, but the nuances can vary depending on the generation. Xiaomi Pad 5 and Pad 6 models use a scheme where the back cover is the main carrier element to which the motherboard is attached, which distinguishes them from budget lines, where the board can be screwed to the middle frame.
The most important element of the internal layout is the wide plume of the display, which often passes under the battery or other components, which creates additional difficulties when replacing the screen or battery, requiring partial dismantling of adjacent nodes.
Hidden antennas
In addition, it is worth noting the presence of protective screens and heat-dissipating graphite gaskets. Thermointerfaces play a critical role in cooling the Snapdragon processor, and their damage or poor installation during assembly can lead to overheating of the device in the future.
Step-by-step: Removal of the back cover
The first and most time-consuming step is to separate the back panel, and to do this, you need to warm the perimeter of the device evenly with a hairdryer to a temperature of 60-70 degrees Celsius, and do not hold the hairdryer too close to overheat the display matrix or deform plastic elements of the structure.
After warming up, insert a suction cup at the bottom of the back cover and gently pull up, creating a small gap. Insert a plastic mediator into the resulting gap and, as you slid along the perimeter, gradually cut the adhesive layer. Move slowly, controlling the depth of the tool.
☑️ Pre-opening checks
Be especially careful in the corners of the device, where the glue is often tightened, and in the area where the camera modules are located. A sharp jerking movement can lead to a crack in the glass or damage to the lens. If the cover does not respond, repeat the heating procedure without undue effort.
Dismantling internal components and battery
When you remove the back cover, you'll see the inside of the tablet, and the first thing you need to do is to disconnect the battery plume from the motherboard, which is a must-have that shuts down the device and prevents short circuits when you're working with other components.
Next, you have to unscrew all the visible screws that hold the metal clamping bars, which usually close the connectors of the display and other modules, use a magnifying glass to keep the screws hidden under the stickers or warranty seals, carefully bend the slats and disconnect the plumes.
| Component | Type of attachment | Risks in dismantling |
|---|---|---|
| Battery | Glue base | Puncture, fire. |
| Maternity fee | Screws + plumes | Contact break |
| Display. | Glue + plume | Breaking the matrix |
| Camera. | Grounding in the groove | Lens damage. |
Removing the lithium polymer battery requires a separate approach. The battery's glue is very durable. Use a special solvent or isopropyl alcohol to remove it, which must be carefully inserted under the battery. Do not attempt to pull the battery out by force or use metal blades.
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Use plastic cards or special tapes to pull the battery, pre-massively moistened with alcohol.
Replacement of the display and the touch screen module
In modern Xiaomi tablets, the screen and touchscreen are often a single module, which makes it easier to replace, but increases the cost of the part. If they are separated in your model, the process becomes much more complicated and requires a separator and skills to work with the device. UV-glue.
To replace the module, you need to completely dismantle the motherboard, as the display plume usually runs underneath it. Carefully transfer all the elements (dynamics, front camera, sensors) from the old screen to the new one. Make sure that the new glass has already been coated with adhesive, or prepare a double-sided tape.
⚠️ Note: When installing a new screen, check the integrity of the plume and the absence of cracks, as even microscopic damage can lead to the appearance of stripes or complete absence of images.
The reverse order is used, and the display plume is connected first, the clamping bars are installed, the screws are twisted, and then you can plug the battery in and check the device's performance before the final glue of the case.
Assembly of the device and check of performance
The final stage, assembly, requires attention to detail, and make sure that all screws are returned to their places, especially those of different lengths, and that the screws may damage the board or not provide the necessary pressure on the components.
Before applying the new glue, do a primary test: plug the battery, press the power button, and check the touchscreen, sound, cameras, and charging. If everything is working correctly, apply a new adhesive layer (B-7000 or special sealant) around the perimeter of the frame.
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High-quality sealing of the case is the key to protecting electronics from dust and moisture, so do not save on adhesive composition during the final assembly.
Tightly press the back cover and lock the device with rubber bands or load for 1-2 hours until the glue is completely dry. After that, wipe the case from the glue residue and conduct the final testing of all the functions of the tablet in active mode.