Disassembly of the robot vacuum cleaner Xiaomi Vacuum Mop 2: a detailed guide with photos and tips

Why you should take down Xiaomi Vacuum Mop 2 and when you really need it

Xiaomi Mi Robot Vacuum-Mop 2 (model number STYJ02YM) is a popular cleaning device, but even the most reliable equipment requires maintenance. The main reasons for disassembly are: clogging of the vacuum cleaner, wear of brushes, turbine failure or malfunction of electronic components. For example, if the vacuum cleaner begins to suck up garbage, makes extraneous sounds or does not respond to commands, internal diagnostics are likely to be required.

However, disassembly is not always justified. If the problem is a software failure (for example, the device does not connect to the Mi Home application), first try resetting the settings through the reset button on the case or reinstall the firmware. Mechanical malfunctions are another matter: there is no disassembly. It is important to understand that improper dismantling can lead to loss of warranty (if it is still valid) or damage to the control board.

In this article, we will provide a step-by-step guide with a photo, a list of tools you need, and a list of common mistakes users make when first disassembling, and we will also look at which parts can be replaced yourself, and in which cases it is better to contact the service center.

Preparation for disassembly: tools and precautions

Before you start, make sure you have everything you need. Xiaomi Vacuum Mop 2: Minimum Toolkit for Disassembling

• 🔧 Plastic mediators (2-3 pieces) - for careful tweaking of the latches of the body.
• 🔨 Cross screwdriver (size) PH0 or PH1) — lid-pin.
• 🧲 Magnetic substrate or bowl – so as not to lose small details.
• 📸 Smartphone – for photographing the process (useful when reassembling).
• 🧴 Isopropyl alcohol (70%+) — Cleaning contacts and fees.

Also, prepare your workspace: a clean desk with good lighting and soft fabric (so as not to scratch the case).If you are disassembling the vacuum cleaner for the first time, we recommend watching video instructions on YouTube, which will help visualize the process.

⚠️ Warning: Do not use metal screwdrivers to smack plastic latches - this will lead to chips! If the latch does not respond, try to heat the case slightly with a hairdryer (temperature not higher than 50).°C).

Step-by-step disassembly of the body: remove the upper cover

So, we start by dismantling the top panel, and this is the most important step, because it's easy to break the latches.

1. Turn off the vacuum cleaner and remove the battery (if possible). If the battery is not removable, disconnect the device from the power for 10-15 minutes to discharge the capacitors.
2. Turn the vacuum cleaner over and remove the side brush (it is attached to one screw).
3. You can use the mediator to pull the gaps between the top and bottom of the case, and start at the corner next to the power button, and the latch is weaker.
4. Carefully steer the mediator around the perimeter until the lid starts to move away. Don't force it -- if the body doesn't respond, check if all screws are twisted.

Once you remove the lid, you'll see the control board, the battery and the engine compartment. Don't touch the boards with your bare hands -- static electricity can damage the chips. Use an antistatic bracelet or at least ground by touching a metal object.

If the lid is successfully removed, but you see dust or moisture inside, it's a warning sign. The seals are probably worn out and the vacuum cleaner is leaky, and you'll need to replace the rubber pads or the fine filter.

Dismantling of key nodes: turbine, brushes, battery

Now, let's look at the internal components, and let's start with the most common causes of disassembly, which are turbines and brushes.

1. Removal of the main brush and turbine

The main brush is mounted on two latches to remove it.

1. Press the red locks on the sides of the brush.
2. Pull the brush over yourself - it should come out of the grooves.
3. Clean the brush of hair and debris. If the bristles are worn, replace it — ZNMS01WM).

The turbine is hidden under a plastic lid to get to it.

1. Unscrew 4 screws of mounting of the turbine cover.
2. Disconnect the turbine power connector from the board.
3. Remove the turbine and clean it of dust with compressed air. If the blades are damaged, you will need a replacement (article - ZNMS02YM).

Removal of the battery

The battery in the Xiaomi Vacuum Mop 2 is removable, but it's mounted on two screws and a connector to remove it.

1. Unscrew the battery mount screws.
2. Carefully disconnect the power plume from the board (do not pull the wires!).
3. Remove the battery. If it swells, don't use it again! Replace it with the original battery (LBXM01YM, 5200 mAh).

⚠️ Warning: If the vacuum cleaner doesn't turn on after battery replacement, check the polarity of the connection "+" And the -- can burn the control board.

Cleaning and Diagnostics of Electronic Components

The control board is the most vulnerable part of the vacuum cleaner, and the dust, moisture and static electricity can make it go down.

• 🔌 Contact connectors - they should be clean, without oxidation.
• 🔥 Traces of burns on the board - a sign of a short circuit.
• 💧 Corrosion – if the vacuum cleaner has contact with water.
• 🕳️ Bloated capacitors – they need to be replaced.

Use isopropyl alcohol and a soft brush to clean the board. Do not use acetone or other aggressive solvents! If you find damaged elements but do not have soldering experience, you should contact the service.

Also check the infrared sensors (located around the perimeter of the housing) that are responsible for navigation and avoiding obstacles, wipe them with a napkin dipped in alcohol, contaminated sensors can cause the vacuum cleaner to move around in a chaotic manner.

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If the vacuum cleaner doesn't turn on after cleaning the board, try resetting to the factory settings. To do this, press the power button for 10 seconds until the white indicator lights up.

Common Mistakes in Disassembly and How to Avoid Them

Even experienced users sometimes make mistakes that lead to breakdowns.

1. Too much pressure on the latches → Solution: use plastic mediators and heat the case with a hairdryer.
2. Tangled wires during assembly → short circuit. Solution: photograph each stage of disassembly.
3. Ignoring static electricity → Solution: Use an antistatic bracelet.
4. Cleaning the turbine with water → Solution: dry cleaning or compressed air only.

Another common problem is the loss of screws. Xiaomi Vacuum Mop 2 uses screws of different sizes, so we recommend folding them in separate containers with signatures (for example, "turbine screws", "cover screws").

⚠️ Warning: If the vacuum cleaner is squeaking when you're moving, check if a foreign object has hit the wheel mechanism. Take the bottom of the vacuum cleaner and remove the debris.

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The most common cause of breakage after disassembly is incorrectly connected connectors. Always check the density of contacts before turning on!

Reverse Assembly: How to Avoid Mistakes

The assembly should take place in reverse order, but there are several nuances:

1. Check the seals – if they are worn out, replace them (article – ZNMS03YM).
2. Make sure all connectors are tightly connected – especially with the control board and turbine.
3. Twisting the screws cross-cross to avoid skewing the body.
4. Before turning on, check if there are any foreign objects (cogs, mediators) inside.

After assembly, perform a test run:

1. Turn on the vacuum cleaner and check the rotation of the brushes.
2. Make sure the turbine is running (the characteristic suction sound should be heard).
3. Check the navigation – the vacuum cleaner must respond appropriately to obstacles.

If something doesn't work properly, don't panic. Go back to the disassembly phase and check all the connections again, and 90 percent of the time, the problem is poor contact or improperly installed.

FAQ: Answers to Frequent Questions