Xiaomi’s peripheral and Redmi’s sub-brand are growing in popularity thanks to their excellent value for money, but over time, even reliable devices can require maintenance. Most often, users are faced with the need to clean the wheel of dust, replace a dead battery or eliminate the double click that occurs due to oxidation of contacts. Unlike gaming devices with screws, many of the Chinese giant’s models are designed to look as monolithic as possible, which puts newcomers at a dead end.
The process of opening the case requires accuracy and understanding of the design, because there are no obvious entry points for the tool. Wrong actions can lead to breakage of plastic latches or damage to plumes, so it is important to prepare the workplace and the necessary tools. In this article, we will discuss in detail the algorithm of actions for different models, paying attention to hidden screws and dismantling features.
It should be noted that self-intervention almost always leads to the loss of the official warranty, so weigh all the risks before starting work. If the device is new and is under warranty, it is wise to contact an authorized service center, but for older gadgets disassembly is the only way to extend the life of your favorite accessory. We will consider universal methods that apply to most popular models, such as the Mi Portable Mouse and Redmi Silent Mouse.
Workplace preparation and necessary tools
Before you start physically impacting the device, you need to organize the space so you don't lose the finer parts. You need a table with good lighting and a non-slip surface, because the little cogs and plastic latches tend to disappear in an unknown direction instantly. It's also critical to ensure that there's no static electricity that can damage the sensitive electronics inside.
For a high-quality disassembly, you will need the minimum set of tools that any home craftsman or amateur radio enthusiast will have, the main tool will be a thin plastic card or a special mediator for opening that does not scratch the glossy plastic of the case.
- 🛠️ Set of screwdrivers with interchangeable nozzles, necessarily including cross PH00 or PH0.
- 🔪 Thin stationery knife or blade for gently cutting glue under stickers.
- 🧲 Magnetic holder or small container for folding screws so that they do not roll under the furniture.
- 🧤 Antistatic gloves or at least dry clean hands for working with boards.
Pay special attention to the choice of screwdriver: too much sting can rip off the screw cap, and too small will not give the necessary effort to twist. Xiaomi models often use screws with a secret head that sit very tightly, so the tool should sit in the hat perfectly.
Search for hidden screws and mounting points
The main feature of the design of Xiaomi mice is minimalism, which is achieved by hiding all fasteners under decorative elements. At first glance, it may seem that there are no screws at all, but they are necessarily hidden under gliding legs or warranty stickers.
Examine the bottom carefully: if you see a sticker with a serial number or QR-code, know that underneath it is almost certainly one of the fasteners, heat the sticker carefully with a hair dryer at minimum temperature to soften the glue, and try to remove it without breaking, although often it has to be replaced with a new one.
⚠️ Warning: Never try to fit a sticker or leg with a blade without first heating, as you risk damaging the plastic base of the case and the mouse will stand on the table crookedly.
Most of the mounts in models like the Mi Silent Mouse or Dual Mode are hidden under Teflon legs, so you'll have to gently tuck the edge of the leg with a sharp object and slowly peel it off, trying to save the adhesive layer for re-setting, and if the leg deforms, it will have to be replaced with a new one bought at a specialty store.
Once you've removed all the visible elements, check the indentations inside the battery compartment, and in some versions, the screws can hide there, protected by a removable lid, and only when you make sure that all the screws are twisted, you can move on to splitting the halves of the body.
☑️ Pre-mortem checks
The process of opening the case and dismantling components
When all the screws are removed, the most important thing is to separate the upper and lower parts of the case. Xiaomi plastic is quite high quality, but fragile in a pinpoint impact, so all movements must be smooth and confident. Put a plastic card or mediator in the junction between the halves in the area of the tail of the device.
Slowly map along the perimeter, hearing the characteristic clicks of unbuttoning plastic latches. Do not use metal tools for this operation, as they leave deep bullies on the ends and can damage the internal ribs of the stiffness. If the body does not diverge, do not apply brute force - you may have missed one of the screws.
When you remove the bottom cover, you'll see the inside of the circuit board, the battery, and the scroll wheel, and in some models, the board can be attached with extra screws to the top of the case, so you can't lift it up abruptly.
- 🔋 Disconnect the plume or battery connector from the board if deep cleaning is planned.
- 🖱️ Carefully remove the wheel mechanism, which is often simply nested in the slots without fixing.
- 💾 Pay attention to the condition of the sensor and lens – they are often clogged with dust and pile.
To access microswitches, you often need to unscrew the board itself by unscrewing 2-4 extra screws, which you only need to do if you are planning to replace switches or solder, otherwise just clean the contacts.
The secret of unbuttoning tight latches
Battery replacement and battery maintenance
One of the most common causes of disassembly is the failure of the built-in battery, which eventually loses capacity. Xiaomi wireless mice usually use standardized-sized lithium polymer batteries that are easy to find on sale by labeling. Replacing the battery returns the device to mobility and eliminates the need to keep it on the wire all the time.
To retrieve the old battery, you need to unseal the contacts or disconnect the connector, depending on the model. Most of the time, soldering is used, so you'll need a soldering iron with a thin sting and solder. It's important not to overheat the board and the battery itself, as high temperatures can damage the chemical composition of the new battery.
| Parameter | Standard value | Permissible range | Note |
|---|---|---|---|
| Tension. | 3.7 V V | 3.6. to 3.8 B | Critical for electronics |
| Capacity | 500mAh | 400-800 mAh | Affects working hours |
| Jack | JST 1.25 mm | 1.0 - 1.5 mm | We need to measure it with a rod. |
| Typical size | 602030 | Any fitting size | Width-thickness-length |
When installing a new battery, make sure that the wires are not clamped by the case and do not touch the sharp edges of the plastic.The polarity of the connection must be strictly observed, otherwise you can burn the power controller on the board. After assembly, check the charging operation with the indicator before finally twisting the screws.
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If you don’t know how to solder, you can try to find a battery with already soldered wires and a connector that matches your model, just to replace the entire module.
Cleaning the sensor and eliminating double clicks
The problem of double clicking or sticking buttons is often solved by simply cleaning the mechanism without replacing the components. Dust and oxidation of contacts are the main enemies of microswitches, so careful cleaning with alcohol or a special contact spray (Contact Cleaner) often works wonders. Just drop a little liquid inside the switch and press the button several times.
The touch lens located at the bottom of the mouse also requires regular maintenance, as the villi can cause chaotic cursor movement.Wash the lens with a dry lilaless napkin or cotton swab dipped in isopropyl alcohol.Do not use aggressive solvents that can cloud the plastic of the lens.
If the cleaning didn’t help and the double click remained, you can try to bend the metal contact plate inside the microswitch. This will require removing the top cover of the switch (if the design allows) or gently opening its body, bent the metal legs of the attachment.
- 🧹 Blow the insides with compressed air from the can to remove fine dust.
- 💧 Use isopropyl alcohol to degrease button contacts.
- 🔧 Bend the contact plate inside the switch by 0.5 mm to improve the pressing.
In extreme cases, if mechanical cleaning does not help, the microswitch will have to be soldered. For Xiaomi mice, switches from Huano or Omron with similar dimensions and the height of the rod are often suitable.
Assembly of the device and check of performance
The final stage is assembly, which requires even more care than disassembly. Make sure all the plumes are connected to the end and fixed, and the battery wires are laid in the designated channels so that they do not get pinched with plastic. Gather the body, combining all the guides, and evenly press the perimeter until all the latches click.
Put the screws in their seats, but don't drag them over, as plastic can crack from overpressure. Put the Teflon legs back in place: if the old adhesive layer holds poorly, use minimal amounts of superglue or buy new glides that cost less.
After assembly, be sure to check all the functions: cursor movement, wheel scrolling and button pressing. Connect the device to the computer and test it in operation to make sure there are no problems.
⚠️ Note: If the mouse does not turn on after assembly, do not panic - most likely you forgot to connect the battery plume or confused polarity when soldering.
A properly assembled Xiaomi mouse should work like a new one, delighting you with smoothness and the absence of unnecessary sounds. Regular maintenance prolongs the life of the periphery at times, making the purchase of quality equipment even more profitable.
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Quality assembly depends on the correct procedure: first connect all the plumes, then lay the wires, and only then connect the halves of the body.