How to disassemble the Xiaomi mouse: instructions for all models with photos and tips

Xiaomi’s wireless mice are some of the most popular PC and laptop accessories for price, design and functionality. However, even such reliable devices sometimes require disassembly, whether it’s battery replacement, contact cleaning or button repair. In this article, we’ll detail how to open a Xiaomi mouse of any model – from the classic Mi Wireless Mouse to the Mi Bluetooth Mouse 2 – without the risk of damaging the case or internal components.

It's important to understand that Xiaomi's mouse design is different from traditional wired models, and there are no visible screws, and the case is often glued together or latched, and we'll show you 3 universal opening methods that are suitable for most of the brand's devices, and we'll give you tool recommendations and warn you against typical mistakes. If you've never disassembled your gadgets yourself, don't worry: with the right approach, the process will take no more than 10 minutes.

Before you start, make sure that disassembly is really necessary. For example, if the Xiaomi mouse does not turn on, first check the battery power or try to reset it through the Reset button (if any). In 70% of cases, the problem is solved without opening the case. But if you are sure that you need disassembly, follow our instructions.

Preparation for disassembly: tools and precautions

Before you open your Xiaomi mouse, prepare your workplace and the tools you need to do so to minimize the risk of damage to plastic parts or loss of small components.

• 🔧 Plastic mediator or opener - for careful disconnection of latches (metal screwdrivers can leave scratches).
• 🔍 Lump or magnifying glass - will help to see small latches and contacts.
• 📸 Smartphone for photography – fix the location of parts before dismantling, so as not to confuse them during assembly.
• 🧲 Magnetic mat or bowl – for storing screws and small parts (they are easily lost!).
• 🧴 Isopropyl alcohol (70%+) — cleaning contacts if the dismantling is related to pollution.

Note that Xiaomi mice often use hidden screws under stickers or legs. For example, in the Mi Wireless Mouse Lite, one screw is hidden under a rubber substrate. Trying to open the case without twisting such screws will lead to breakage of the latches. Also avoid using a knife or sharp objects - they cut through the plastic, leaving irreversible damage.

⚠️ Note: If your Xiaomi mouse is warranty-free, disassembly will cancel it. In case of factory defects, contact the service center. Self-repair is only justified after the warranty period has expired or if mechanical damage (for example, after a fall).

Method 1: Disassemble the Xiaomi mouse with latches (without screws)

Most Xiaomi budget models, like the Mi Wireless Mouse Lite or Mi Portable Mouse, are built on plastic latches without screws, which makes disassembly easier, but requires caution.

1. Turn the mouse over and remove the battery compartment cover (if it's removable), and in some models, the first latch is hidden underneath.
2. Insert a plastic mediator into the gap between the top and bottom of the case (usually visible near the wheel or buttons). Carefully guide the instrument around the perimeter, listening to the clicks of the disconnecting latches.
3. When all the latches open, don't pull the parts of the case sideways -- there may be a plume inside that connects the buttons to the board. Lift the top cover at a 30° angle and check for the plume.

If the latches don't lend themselves, try to heat the body with a hair dryer (temperature no higher than 50°C) - the plastic will become softer. Do not use hot air for more than 10 seconds in one area, so as not to deform the case.

Remove the battery (if any)

Check for hidden screws under stickers

Prepare a plastic mediator

Wear an antistatic bracelet (optional)

Take a picture of the initial state-->

In wireless charging models (such as the Mi Wireless Charging Mouse), there may be an additional metal plate inside the case, which attaches to the bottom and often interferes with disassembly. To remove it, gently tuck the plate on one side, which is usually held on double-sided tape.

Method 2: Disassembly of the mouse with screws (Mi Bluetooth Mouse, Mi Gaming Mouse)

More expensive models, such as the Mi Bluetooth Mouse 2 or Mi Gaming Mouse, have a screw mount.

• 🏷️ Stickers (on the underside of the mouse).
• 👣 Rubber legs (they can be gently tampered with a nail or plastic card).
• 🔋 Battery compartment cover (sometimes the screw is hidden under the contacts).

Disassembly algorithm:

1. Turn the mouse over and remove all the stickers (you can stick them back after repairs) and underneath them are usually screws like the Torx T5 or Phillips 00.
2. Unscrew all the screws and put them in a magnetic bowl. In backlit models (such as the Mi Gaming Mouse), there may be an additional screw under the wheel.
3. After unscrewing the screws, carefully disconnect the body with a plastic mediator - even in screw models there are often latches!

Attention: Mi Bluetooth Mouse 2 can have different lengths of screws, remember which screw is twisted from where, or take a picture of their location, and use a long screw in an unintended hole will damage the board.

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If the screw doesn't work out, drop a drop of WD-40 or alcohol on it and wait 5 minutes to help dissolve any possible corrosion or glue.

Method 3: Disassembly of a mouse with adhesive joint (rare cases)

Some limited Xiaomi mouse series (such as special editions or devices with a waterproof housing) may have adhesive attachment of parts of the case.

• 🔥 Hair dryer or heat gun (to soften glue).
• 🧊 Cold air (you can use a can of compressed air in an upside down form).
• 🧴 String or guitar string (to cut through the glue seam).

Step-by-step:

1. Heat the body with a hair dryer around the perimeter for 1-2 minutes. Keep the hair dryer at a distance of 10 cm to avoid melting the plastic.
2. Insert the thread into the gap between the parts of the case and carefully sawing movements, cut through the glue seam. If there is no thread, use a thin plastic mediator.
3. After the body is disconnected, clean the glue residues with isopropyl alcohol. Use a new adhesive (e.g., B-7000) to reassemble.

⚠️ Warning: The adhesive compound is often used in moisture-protected mice (e.g. Mi Waterproof Mouse) and after disassembly, the leakage will be broken and the device will lose waterproof properties.

What to do after disassembly: diagnosis and repair

When the case is open, look at the internal components, and here are the typical problems and ways to fix them:

• 🔋 Mouse won't turn on: Check the battery contacts, they can be oxidized. Clean them with alcohol and cotton swab. Check the fuse on the board (if any). USB-He often burns out when the receiver is running out of power.
• 🖱️ Buttons don't work: Check the integrity of the microswitches (they look like little black cubes under the buttons). If the contacts are oxidized, clean them. Make sure the button plume is tightly connected to the board.
• 📡 It's not working. Bluetooth/Wi-Fi: Check the antenna (a thin wire running from the board to the top of the case) it could come off. Update the mouse firmware through the Mi Mouse Center (if the model supports software).

If you find damaged tracks on the board, you can repair them with conductive glue (like Contactol). D2FC-F-7N).

Xiaomi Mouse Builder: How to Avoid Mistakes

Building the hull is as important as disassembling it. Here are the key points:

1. Check the plumes' location, they don't have to bend or clamped. In backlit models, the plume often goes to the bottom. LED-wheel-band.
2. Set all the screws in the right sequence. Start with the corner screws, then lock the center screws. Don't drag them over, easy enough.
3. Check the gaps between the parts of the body, if they're uneven, then the latches haven't fallen into place. Carefully press the problem areas before you click.

After assembly, test the mouse:

• 🔄 Scroll the wheel both ways.
• 🖱️ Press all buttons (including side buttons if any).
• 📶 Check the stability of the connection (Bluetooth or radio frequency receiver).

⚠️ Warning: If the mouse is not working properly after assembly (e.g. double clicks or spontaneous cursor movements), disassemble it again and check: Integrity of the film buttons (they may have shifted). No foreign objects inside the case (e.g., plastic debris). Correctness of connection of optical sensor (in models with adjustable sensor) DPI).

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If the mouse does not turn on after assembly, check the polarity of the battery - in some Xiaomi models, the contacts are located outside the box (plus on the right).

Frequent Mistakes and How to Avoid Them

Even experienced users sometimes make mistakes when disassembling Xiaomi mice, and here are the most common ones and ways to prevent them:

Another common problem is that the flexible plume is damaged when the housing is opened in a sloppy manner, and if the plume is broken, it can be temporarily repaired using a conductive paste, but it is more reliable to order a new plume (for example, on AliExpress for "Xiaomi mouse flex cable").

If you are disassembling a Xiaomi mouse for cleaning, avoid using wet wipes or aggressive detergents. The best option is to dry brushing (for example, for camera lenses) and blowing compressed air. To remove persistent contaminants, use a cotton swab dipped in isopropyl alcohol.

FAQ: Answers to Frequent Questions