Xiaomi's computer peripherals are deservedly popular for their ergonomic design and reliability, but over time, even high-quality equipment requires maintenance. Owners often face the need to replace the battery, clean the click mechanism or eliminate double-activation of buttons, which cannot be done without opening the case. The process of dismantling these gadgets has its nuances, as the company's engineers often hide fasteners under decorative linings or use specific screws.
In this article, we will take a closer look at the algorithm for different models, including wired and wireless versions. You will learn what tools you will need to safely open, how to not damage the plumes and properly assemble the device back. It is important to understand that any interference with the design of the device can lead to loss of warranty, so you should only start disassembling if you are aware of the risks.
Preparation requires care and care, because plastic latches from Chinese manufacturers are often made of fragile material. Incorrect application of force can lead to cracks in the case or breakage of internal mounts. Next, we will take a Step-by-step to analyze all the steps of the process to minimize the likelihood of errors and successfully complete the repair of your device.
Tools and workplace preparation required
Before you start disassembling the Mi Mouse or any other model, you need to have a comfortable workspace with good lighting, you need a flat surface where you can put small parts so they don't get lost and roll into hard-to-reach places, and the absence of the space allows you to focus on the process and not damage fragile components.
To successfully complete the task, you will need the following set of tools:
- 🔧 Set of screwdrivers with cross nozzles (PH00, PH000) flat-sting.
- 🛠️ Plastic spatula (spooger) or mediator for opening the body without scratches.
- 🧲 Magnetic mat or small screw collection container.
- 🧤 Antistatic gloves to protect electronics from static electricity.
Particular attention should be paid to the type of screws, as some Xiaomi models use Torx asterisk screws (T5 or T6). If you do not have such a bit in your set, trying to twist them with a cross screwdriver will lead to licking of the faces and the inability to further disassemble. It is also recommended to prepare tweezers with curved ends, which will help to gently pluck the plumes.
⚠️ Warning: Never use metal scissors or knives to tweak the case, as they can damage the circuit board or injure your fingers when slipping.
Design features and search for hidden screws
Xiaomi’s mouse design often involves minimalism, so manufacturers tend to hide all the fasteners so as not to disturb the aesthetics of the device. In most cases, the screws are under the top Glide pads (Teflon legs) or under a decorative plaque with a logo. The first step is always to carefully visually inspect the bottom of the device in bright light.
Often, under the main top sticker are two screws that hold the top and bottom of the body together. Carefully heat the sticker with a hairdryer at minimal power to soften the glue, and slowly remove it. Under it you will most likely find screw holes.In some game models, additional mounts can be hidden inside the battery compartment or under the rubber cap of the receiver.
Once you've unscrewed all the visible screws, don't immediately try to pull the body apart by force, check if there's any hidden attachments left, especially around the scroll wheel or the tail, and the plastic latches are located around the perimeter of the device, and they need to be released sequentially, starting at the nose.
Where to look for screws in different models
The process of opening the hull and disconnecting the plumes
When all the screws are removed, the most critical step is to split the halves of the body. Take a plastic blade and carefully insert it into the junction between the top and bottom panels. Move along the perimeter, gradually snapping the locks. A characteristic click will signal the successful release of the next latch.
Do not open the body completely immediately after the halves are disconnected, as there may be connecting plumes inside. In Xiaomi wireless models, a plume often occurs that connects the main board to a board of buttons or LEDs. A sharp jerking movement can break these thin conductors, which will cause the device to fail.
To turn off the plumes, use tweezers or plastic spatulas. The connectors can be of different types: some are fixed with a latch that needs to be bent upwards, others just sit tightly in the nest and require careful pulling over the thickened part of the connector. Remember or photograph the location of all the connections before dismantling.
☑️ Autopsy procedures
Diagnostics of major malfunctions and their elimination
Once the insides of the device are accessed, diagnostics can be started. The most common problem is double clicking or button sticking, caused by wear and tear of microswitches (micros) or dust, and often requires replacement of the battery in models where the battery is not removable or contacts have oxidized.
If the problem is erratic cursor movement, check the optical sensor for villi or dust. Clean the lens should be done with a dry lilaless napkin or cotton swab lightly soaked in isopropyl alcohol. Mechanical contamination of the scrolling wheel can also cause jerks during scrolling, they are removed by purge or dry cleaning.
The table below shows the main symptoms and probable causes of malfunctions:
| Symptoms. | Probable cause | Method of decision |
|---|---|---|
| Double click | Wear of the microswitch | Replacing a mikrika or cleaning contacts |
| The cursor twitches. | Dirt on the sensor | Sensor lens cleaning |
| The indicator doesn't burn | Battery discharged | Recharging or replacing the battery |
| Bad scrolling. | Encoder contamination | Purging and cleaning of the mechanism |
⚠️ Warning: When cleaning the mikrik contacts, use a minimum amount of alcohol so that the liquid does not leak into the switch mechanism, which can cause corrosion.
Battery replacement and battery maintenance
Many Xiaomi Mi Mouse models use standard thumb batteries, but smaller versions (such as the Silent Mouse) have a built-in lithium polymer battery. If the device stops holding charge or turns on, the battery is likely to fail and need to be replaced.
To replace, remove the old battery, paying attention to the polarity of the connection. The new battery should have the same dimensions and connector. Often the batteries are glued to the body with double-sided tape, so they need to be carefully trimmed with a plastic card or a spatula, trying not to damage the shell of the cell, as this can lead to fire.
After installing the new battery, check the voltage on the contacts with a multimeter before final assembly, this will help ensure that the new part is healthy and the connection is correct. Lithium batteries are sensitive to overheating, so do not use a soldering iron in the immediate vicinity of them without proper preparation.
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Use a battery with a protective board (PCB) to prevent deep discharge and overcharging, which will significantly extend the life of the device.
Device assembly and functional testing
The assembly is done in reverse disassembly, first of all, plug all the plumes in and make sure they're snapped to the end, then carefully align the halves of the body, starting at the bow, and check the density of the fitting, and if done correctly, the halves will converge without gaps or additional effort.
Twisting all the screws, but do not drag them over, so as not to break the thread in the plastic racks. Pay special attention to the installation of Teflon legs: if the old ones have become obsolete, they must be replaced with new ones, pre-fatting the surface with alcohol. The quality of the slide depends on the smoothness of the sticker.
Once assembled, connect the mouse to the computer and check all buttons, wheels and sensors, test for no double clicks and smooth cursor movement, and if all functions are working correctly, the repair can be considered successful.
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Quality assembly depends on the correct sequence of connection of plumes and accurate installation of fastening screws without distortions.