Owners of wireless peripherals from the Chinese giant often face the need to access the insides of the gadget, which can be caused by various reasons, from the banal replacement of a dead battery, which can not be removed from the outside, to more serious problems with microswitches.
Many users mistakenly believe that the body is monolithic and can not be opened without damage. However, most models are designed neatly dismantled, if you know the location of hidden screws and latch points. In this article, we will discuss in detail the process of disassembling popular models such as the Xiaomi Mi Mouse 2 and Lite.
Before you start to act, you need to prepare the workplace, you need good lighting, a set of screwdrivers and perhaps a dryer to soften the glue, and you need to take your time, because the plastic of the case is quite fragile and can crack if you move carelessly.
Tools and workplace preparation required
To successfully perform the procedure, you will need the minimum set of tools that any home craftsman will have, the main tool being a thin cross screwdriver, often the size of a PH0 or PH00, since the screws in these devices are very small.
Also indispensable assistant will be a mediator, plastic card or a special blade for opening the case. The use of metal objects such as knives or flat screwdrivers is strongly discouraged at the stage of disengaging the halves of the case, as this is almost guaranteed to leave traces on glossy plastic.
- 🔧 Thin cross screwdriver (PH0/PH00)
- 🃏 Plastic card or mediator
- 🔥 A hair dryer or heating panel (to soften glue)
- 🧲 Magnetic screw bowl
Organize the space so that small parts don't roll far: The screws in Xiaomi's mice are often hidden under stickers or legs, so losing them can become critical when assembled.
☑️ Preparation for disassembly
Features of the design of the Mi Mouse 2 and Lite models
Xiaomi’s wireless mouse lineup, including the Mi Mouse 2 and Mi Mouse Lite, has similar architecture but nuances, with a minimalist design that hides all the fasteners.
Unlike aggressively designed gaming devices, the screws are all hidden under decorative elements or legs. Fixed screws are usually located in the recesses under the top Teflon linings or under the main logo sticker.
It's important to understand that the Xiaomi Mi Mouse 2 has a more complex system of fixing the halves of the body around the perimeter. Plastic latches are often located and require careful clicking in a circle. The Lite model is simpler in this regard, but requires attention to the plume of the scroll button.
⚠️ Note: Before starting disassembly, be sure to remove the battery type AAA. The left-over power supply can close contacts or leak out during the heating and pressure on the body.
Special attention should be paid to the scroll wheel. In some revisions, it is held on a separate axis, which is easy to lose. The axis of the wheel can fall out if you do not handle it carefully, so hold the device horizontally.
Step-by-step: how to remove the top panel
We start by removing the external elements, flip the device over and look carefully at the bottom, and if you see the screws covered by round rubber legs, you need to carefully needle them and remove them.
Once the legs are removed, the screws will open, unscrew them completely and put them away to safety, and if the screws are not there or they are twisted, but the case does not open, then it is held on plastic latches and possibly adhesive.
To detach the body, insert a plastic card or mediator at the junction between the top and bottom. Move around the perimeter, slightly pressing and turning the tool. Plastic latches should click, freeing from the clutch.
- 🔍 Check the perimeter for hidden screws
- 🔓 Carefully tuck the joint with a mediator
- 🔄 Walk around the circle, snapping the fixers
- ✋ Don’t make excessive efforts to avoid breaking down plastic.
If the body is very tight, you can slightly warm the joints with a dryer at low temperature, which will soften the glue if it was used in the assembly, and make the plastic more elastic, but overheating can warp the shape of the device.
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Use an old plastic bank card or an unnecessary discount card, which is perfect in thickness and flexibility to avoid scratching the glossy plastic of the mouse case.
Access to internal boards and microswitches
When you remove the top cover, you'll see the interior, the main board is mounted with screws or on guides. In Xiaomi Mi Wireless Mouse models, the board is often screwed to the bottom of the case.
The main reason for disassembly is to replace microswitches that start to double or stop responding to pressing, which will require a soldering iron and solder, and the microswitches in these mice are usually standard sized, compatible with Huano or Omron.
Be careful with the plume of the scroll wheel. In some models, it is very thin and easily breaks when the top lid is jerked sharply. If the lid is removed heavily, check if the wire or plume is clamped somewhere.
| Component | Function | Frequent malfunction | Repair method |
|---|---|---|---|
| Microswitch | Click registration | Double click, no response | Replacement or cleaning of contacts |
| Wheel encoder | Page scrolling | Spontaneous scrolling | Replacement of encoder |
| ACB/Battery bay | Nutrition | Oxidation of contacts | Cleaning or soldering new contacts |
| Optical sensor | Traffic tracking | Lens contamination | Purging and cleaning |
If you are planning to replace the switches, make sure you have flux and a good solder suction. quality soldering will ensure a long life after repair.
How to check the serviceability of the microswitch without soldering?
Battery replacement and battery maintenance
Some users want to modify the mouse by installing a lithium polymer battery instead of a standard thumb battery, which requires electronics skills and an understanding of how power controllers work.
The standard Xiaomi Mi Mouse runs on a single AA or AAA battery. To install the Li-Pol battery, you need to choose an item of the appropriate size (usually 602030 or similar format) and voltage (3.7V).
If you just change the dead battery in a non-dismountable version (where there are no screws), the process is similar to the one described above: opening through the junction of the housing, the main thing is not to damage the plastic guides inside.
- 🔋 Choose the correct battery size
- ⚡ Check the polarity of the connection
- 🔌 Make sure there is room for installation
- 🛡️ Isolate contacts to avoid short circuits
When installing the battery, make sure that the wires do not fall under moving parts or clamped with the body when assembled. Insulation of the wires is a critical step.
💡
Power modifications can result in warranty service denial and require a deep knowledge of electronics.Standard battery is often more efficient and safer for such compact devices.
Assembly of the device and check of performance
After all the manipulations, you need to assemble the device in reverse order, first of all make sure that all the plumes and wires are laid in their channels and do not protrude outside the housing.
Connect the halves of the body, starting on one side, and gradually snap the locks around the perimeter. A characteristic click will tell you that the plastic latches have fallen into place. There should be no gaps or creaks.
Put the screws in their places and put the Teflon legs back in place, and if the legs are no longer sticky, they can be replaced with new ones bought at the electronics store, or gently glued to the old ones.
⚠️ Warning: Do not pull the screws when assembled. The plastic in the attachment areas is very thin and can crack, making re-disassembly impossible without glue.
Once assembled, insert the battery and check all the buttons and wheels. Connect the mouse to the computer and make sure the cursor moves smoothly, without jerking, and test is the final stage of a successful repair.