Modern peripherals from Xiaomi is famous for minimalist design and high reliability, but even high-quality devices with time there are technical problems. Xiaomi Wireless Mouse 2 was no exception: after a year or two of active operation, users often face a “double click”, sticking wheel or a sharp decrease in autonomy.
Many owners immediately send the device to the scrap, considering it disposable, but the design of this mouse allows you to maintain or replace the batteries without specialized equipment. Independent disassembly Xiaomi Wireless Mouse 2 is not only a way to save the budget, but also the ability to extend the life of the gadget, cleaning it from dust and dirt accumulated inside the case.
In this guide, we will take a closer look at the dismantling process, focusing on hidden screws and fragile latches. You will learn how to properly remove the battery for replacement and how to eliminate rattling contacts without a soldering iron.
⚠️ Warning: Opening the case automatically voids the manufacturer's warranty obligations. Only proceed if the warranty has expired or the device has been mechanically damaged.
Tools and workplace preparation required
The workspace must be prepared before the procedure begins, the surface must be flat, well-lit and preferably light in color so as not to lose small screws. You will need the minimum toolkit that most home craftsmen have, the main tool is a thin plastic blade or mediator, and a cross screwdriver sized PH0 or PH00.
It is crucial to use plastic tools to open the case, as metal can leave deep scratches on glossy plastic or damage the internal plumes. If you do not have a professional blade at hand, an old plastic card cut in half will do. Also, be sure to prepare a container for folding screws so that they do not fly across the table.
The list of equipment required includes:
- 🛠️ A set of precision screwdrivers (mandatory presence of cross-shaped) PH00).
- 🪄 Plastic blade for opening (spudger) or mediator.
- 🔋 New battery (if you plan to replace, type) AA Li-Ion specific depending on the modification).
- 🧹 Compressed air or soft brush to clean the insides.
- 🧤 Antistatic gloves (optional, but recommended).
Make sure the battery compartment is free of batteries before you start work. If you change the battery, prepare a new one in advance. Disassembling the mouse requires care, so take your time and act consistently, checking each step.
☑️ Preparation for disassembly
Search for hidden screws and dismantling legs
Xiaomi designers have tried to hide all the fasteners to maintain the aesthetic appearance of the device. At first glance, it may seem that there are no screws at all, but this is not the case. The main place of their attachment is traditionally hidden under Teflon legs (glides) or a decorative sticker on the bottom panel. In the Xiaomi Wireless Mouse 2 model, the screws are most often located under the top sticker with a logo or under the rear glide sticker.
To access the fastener, you'll have to gently peel off these elements. Use a hair dryer or hot air (at minimum temperature) to soften the glue, but don't overheat the plastic, otherwise it can deform. Filt the sticker with a blade from one of the corners, trying not to tear it, because after assembly it will have to be glued back. Under the sticker you will find two or four screws that hold the halves of the body together.
Sometimes the screws can be hidden under a rubber plug in the battery compartment. Carefully inspect the battery space. If you see a rubber plug, remove it with tweezers. After you unscrew all the visible screws, take your time to disconnect the case, there may be hidden latches around the perimeter.
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Keep the Teflon legs intact. If they lose their adhesive properties, use double-sided tape or buy new glides, or the mouse will not slide well on the mat.
Opening of the case and access to the internal board
Once all the screws are removed, the most important step is to separate the top and bottom of the case, and it's important to understand how plastic latches work, and they're all around the perimeter of the device, and they can be quite tight, and you can put the plastic blade between the top and bottom of the lids in the area of the tail of the mouse, where there are usually no internal components, and you can carefully turn it.
You'll hear the characteristic click, which means that the first latch is open. Move along the side edges with the blade, gradually snapping the locks. Don't use excessive force: if the plastic resists, you missed the screw or didn't fully snap the previous lock. Xiaomi’s body is made of high-quality, but fragile ABS-Plastic that cracks easily with a point impact.
When all the latches around the perimeter are freed, do not raise the top cover sharply. Inside, there may be a plume connecting the board to the scroll wheel or additional buttons (if the model has advanced functionality). In the basic version of Xiaomi Wireless Mouse 2, the board is usually fixed to the bottom of the case, and the top cover is simply removed, but rechecking the availability of connections is required.
| Disassembly phase | Tool. | Risks. | Council |
|---|---|---|---|
| Removal of stickers | Fen, spatula | Damage to the sticker | Heat carefully without overheating plastic |
| Screwing of screws | Screwdriver PH00 | Carving failure | Hold the screwdriver strictly perpendicular |
| Opening the latches | Plastic mediator | Cracks on the hull | Move consistently in a circle |
| Recovery of fees | Tweezers | The plume break | Check for wires before jerking |
Once you successfully remove the lid, you will see an internal device, the board is secured with screws or plastic pins, and if your goal is to clean the sensor or lubricate the wheel, you may not need to disassemble it further.
What to do if the body does not open?
Battery replacement and element maintenance
One of the common reasons for disassembly is the need to replace the power source. Depending on the specific revision of the Xiaomi Wireless Mouse 2, either a standard AA battery or a built-in Li-Ion battery can be inside. If you have a version with an integrated battery, it is usually attached to the board using a connector or soldered-in.
To replace the built-in battery, you'll need to gently disconnect the power connector from the board using tweezers or a plastic spatula. Under no circumstances pull the wires, just the plastic connector. If the battery is soldered, you'll need a soldering iron and skills to work with it. The new cell should have similar voltage characteristics (usually 3.7V) and dimensions.
In parallel with the replacement of the battery, it is recommended to maintain mechanical parts:
- 🔋 Check the contacts of the battery compartment for oxidation and clean them with alcohol.
- 🔄 Lubricate the axis of the scrolling wheel with silicone lubricant if it creaks or scrolls in jerks.
- 👁️ Blow the sensor module with compressed air to remove villi that interfere with tracking.
- 🔘 If there is a double click, you can try to drop a little alcohol inside the microswitch (without disassembling the switch itself) and actively shout to clear the contacts of oxide.
Importantly, the microswitches in this model are often the cause of rattling contacts, and if cleaning with alcohol does not help, you will need to solder the switches to new ones, such as Omron or Huano, which requires a deeper knowledge of electronics.
⚠️ Warning: Avoid short-circuiting contacts when working with lithium batteries. Do not use damaged or swollen batteries - this can cause fire.
Device assembly and function testing
The assembly is done in reverse order, but requires special care. Make sure that all the plumes are packed into their channels and not clamped with the body. When connecting the halves of the body, first snap the locks in the central part, and then walk around the perimeter, pressing the joints tightly with your fingers until the characteristic click.
Write the screws evenly, without undue effort, so as not to tear the thread in the plastic racks. After twisting all the screws, return the Teflon legs or stickers to place. If the adhesive layer has lost properties, use a minimum amount of glue or bilateral tape to avoid staining the insides.
The final step is testing. Put the batteries in and check all the buttons, the wheel and the cursor accuracy on different surfaces. Connect the mouse to the computer and make sure that the double click has disappeared and the cursor moves smoothly. If the device is unstable, you may have to disassemble it again and check the connection quality.
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Quality assembly depends on the correct positioning of the plumes and the tight fit of the halves of the body. Do not leave gaps, otherwise dust will get inside.
Typical mistakes in self-disassembly
Inexperienced users often make mistakes that cause the device to break down, the most common being trying to untie the case without untwisting all the screws, which causes the plastic racks to break and cracks. Always double-check the fastener with a flashlight and a magnifying glass.
Another mistake is using metal tools (knives, screwdrivers) to open the latches. Metal easily slips and damages the case or board. Always use plastic blades. Also, do not ignore the plumes: a sharp movement can break thin conductors, the recovery of which is extremely difficult.
Remember static electricity. Before touching the board, it is advisable to touch a grounded metal object to remove static charge from the body. Although the risk of damage to electronics by static in everyday life is not always high, it is better to be safe, especially if the room is dry air.