How to Open the Xiaomi Robot Vacuum Cleaner: Instructions for All Models

Xiaomi’s robot vacuum cleaners are smart assistants that require periodic maintenance, such as cleaning filters, replacing brushes, or even repairing electronics. But many users are faced with the problem of how to safely open the case without damaging latches or fillings. In this article, we will examine all the ways of disassembling popular models from the budget Mi Robot Vacuum to the premium DreameBot and Viomi.

It's important to understand that Xiaomi vacuum cleaners are different in their designs depending on the series and year of release. For example, early models (before 2020) often had screws under their legs, and new versions had hidden latches. We'll show you in detail where to look for mounts, what tools you'll need, and how to avoid typical autopsy errors. If you're planning a self-repair or just want to clean internal components, this guide is for you.

Preparation for disassembly: tools and precautions

Before you start opening the case, make sure you have everything you need. For most Xiaomi models, you will need:

• 🔧 A cross screwdriver (usually PH1 or PH0) is for screws on the bottom.
• 📱 Plastic blade or mediator to gently fit the latches.
• 🧲 Magnetic substrate or screw box to keep fine details intact.
• 🔋 Multimeter (optional) - to check the voltage of the battery.

Pay special attention to the battery: if the vacuum cleaner has recently been working, let it cool for 10-15 minutes. Lithium batteries are sensitive to overheating, and disassembling them in a hot state can be dangerous. Also, never use metal tools to tuck plastic latches, this will lead to chips and cracks.

⚠️ Warning: If your vacuum cleaner is warranty, disassembling the case will cancel it, in which case you should contact Xiaomi's service center.

Before starting work, take a picture of the location of all screws and stickers – this will help to properly assemble the device back. Some models (for example, Xiaomi Mi Robot Vacuum-Mop 2 Lite) have QR- codes under the lid, which will be useful for identifying spare parts.

Ways to open the case: step-by-step instructions for different models

Xiaomi’s robot vacuum cleaner design has evolved, and disassembly techniques are different. Below we’ll look at the three main types of mounts that occur in the brand’s devices.

Models with screws on the bottom (Mi Robot Vacuum 1/1S, Dreame D9)

This is the simplest way.

1. Turn the vacuum cleaner over and remove the side brush (it is attached to one screw or latch).
2. Unscrew all visible screws on the bottom (usually 4-6 pieces). In some models, the screws are hidden under rubber legs - gently tuck them.
3. Insert a plastic blade into the gap between the upper and lower parts of the body and gently walk around the perimeter, cracking the clamps.

If the case doesn't respond, make sure all the screws are unscrewed. Sometimes the manufacturer hides one screw under a serial number sticker, which can be carefully peeled off and glued back.

Models with hidden latches (Viomi V2/V3, Mi Robot Vacuum-Mop P)

More modern vacuum cleaners often lack external screws, their body is held only on latches, to open such a device:

1. Place the vacuum cleaner on a soft surface (a towel or rubber mat) to avoid scratching the plastic.
2. Starting at the back (on the charging connector side), insert the blade into the slot and gently press down until you hear a click.
3. Repeat the action around the perimeter. Be careful, the latches can be brittle.

The Viomi V3 has a feature: the top cover is attached to the base with two internal clips near the power button, which must be unlocked by slightly pressing the top-down cover.

⚠️ Warning: If the latches break, don't try to glue them with superglue, it will break the tightness of the case. Better order a replacement with AliExpress (the latches article is usually listed in the service manual).

3: Models with combined mounting (DreameBot L10, Mi Robot Vacuum-Mop 2 Pro)

These vacuum cleaners combine screws and latches.

1. Unscrew 2-3 screws on the bottom (they can be under stubs).
2. Remove the top cover of the garbage tank - additional screws are often hidden underneath.
3. Carefully tuck the body with a spatula, starting from the side opposite the power button.

The DreameBot L10 has a feature: the front panel with sensors is attached separately, and you have to remove it first, disconnecting the plume that goes to the motherboard.

What to do after opening the case: cleaning and diagnosis

When the case is successfully removed, you will see the internal vacuum cleaner.

• 🧹 Filter and fan cleaning: The main filter (HEPA) and prefilter are usually located next to the motor, and can be washed under warm water and dried for 24 hours.
• 🔄 Replace brushes: side and main brushes are attached to clamps or screws. You just need to snap the clamps to replace them.
• 🔋 Battery check: If the vacuum cleaner discharges quickly, measure the voltage at the terminals (norm for Li-ion: 14.8V for 4-cell batteries).
• 🛠️ Electronics diagnostics: inspect the board for bloated capacitors or oxidized contacts.

Pay special attention to the dust sensor (usually located next to the fan). If it is contaminated, the vacuum cleaner may not work properly, for example, not to see the garbage or to return to the base prematurely. Clean it with a cotton swab dipped in isopropyl alcohol.

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If after cleaning the vacuum cleaner began to work louder, check the sealing rubbers on the body - they could shift during assembly.

For models with wet cleaning function (Mi Robot Vacuum-Mop), it is also worth cleaning the water pump and hoses. These are often clogged with scale if hard water was used. A citric acid solution (1 tbsp. per 1 liter of water) is suitable for washing.

Typical Disassembly Problems and How to Avoid Them

Even with a careful disassembly, you can face difficulties, and here are the most common ones and the ways to solve them:

• 🔩 Torn screws: If the screw slits on the screw, use the rubber band between the screwdriver and the screw for better grip. In extreme cases, drill the screw and replace it.
• 🔌 Torn plumes: Don't pull the wires! The plumes are removed by gently lifting behind a plastic fixture (usually white or black).
• 💥 Broken latches: If the plastic cracks, use epoxy glue (but remember, this is a temporary solution). Order 3D- replacement seal for permanent repairs.
• ⚡ Short circuit: before any electronic work, disconnect the battery! Even when it's off, there may be voltage on the board.

One of the worst things is a jammed engine, and if the vacuum cleaner doesn't turn on or makes a grinding noise, check:

1. Did the trash get into the fan bearings?
2. Integrity of gears in the gearbox (relevant for models with a mechanical brush).
3. Motor voltage (should be 12–24V depending on the model).

If you are not sure about your skills, it is better to consult a specialist, for example, repairing the control board in the service will cost 1.5-3 thousand rubles, whereas replacing it with unsuccessful repairs can cost 5-8 thousand.

How to collect the vacuum cleaner back: a step-by-step checklist

Building a device is as important as disassembling it. To avoid errors, follow this algorithm:

1. Make sure all the plumes and connectors are tightly connected. Check the locks, they should click.
2. Carefully lay the wires so that they do not fall under moving parts (for example, under rollers).
3. Close the case, starting at the power button side. Press the latches until the characteristic click.
4. Twisting all screws, but don’t tug them over – this can lead to cracks in the plastic.
5. Set the side brush and check its rotation manually (there should be no spells).

After assembly, perform a test run:

• Check the operation of the main brush and side brush.
• Make sure the vacuum cleaner responds correctly to commands from the remote or through the Mi Home app.
• Test the return to base – if the sensors have shifted, the vacuum cleaner may not see the docking station.

⚠️ Warning: If the vacuum cleaner is getting worse after assembly, check the tightness of the housing. Even a small gap between the top and bottom reduces the suction force by 30-40%.

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Always take pictures of the location of the parts before dismantling – this will save hours of assembly and prevent errors.

When the disassembly did not help: signs of serious malfunctions

Sometimes cleaning and replacing consumables doesn't solve the problem, and here are the signs that the vacuum cleaner needs professional repair:

• 🔥 The red light is on and the vacuum cleaner is not turned on - there may be a malfunction of the power board or battery.
• 🌀 It's spinning in one place -- a problem with the gyroscope or the encoders of the wheels.
• 📡 Doesn't see the base even in manual mode - the infrared sensor or Wi-Fi module is faulty.
• 💦 Water leaks (for wet-cleaning models) - water pump or hoses are damaged.

To diagnose these problems, you'll need specialized equipment, such as an oscilloscope, a board firmware programmer, or a sensor tester, for example, replacing the gyroscope in the Mi Robot Vacuum requires soldering of the chip, which is almost impossible to do at home.

If you suspect an electronics breakdown, contact the service center. Average repair prices in 2026:

Before you take the vacuum cleaner to the service, check if the warranty period has expired. Official Xiaomi dealers have a warranty for robot vacuum cleaners for 12 months, but some stores give an extended warranty of up to 24 months.

FAQ: Answers to Frequent Questions