How to properly reboot the robot vacuum cleaner Xiaomi Mijia: from soft restart to complete reset

Xiaomi Mijia vacuum cleaners (including the 1C, 1T, S5, S6 and STYJ02YM models) are smart devices that can eventually fail: lose communication with the application, “hang” in one place or give out errors like Error 5 or Error 10. In 80% of cases, the problem is solved by a simple reboot, but not all users know how to do it correctly so as not to aggravate the situation.

In this article, we’ll look at all the ways to reboot, from soft restarts (like a smartphone restart) to hard resets (total zero settings), and how to avoid the typical firmware update errors, what to do if the vacuum cleaner doesn’t respond to buttons, and why some reset methods can lead to loss of a room map.

1.When you need to restart the Xiaomi robot vacuum cleaner

Rebooting is not a universal solution to all problems, but it helps in most cases involving software failures. Here are the key signs that your vacuum cleaner needs a restart:

• 🔄 The robot is frozen in one place and does not respond to commands from the application.
• 📱 The Mi Home app shows a Device offline connection error, although the vacuum cleaner is on.
• 🗺️ A vacuum cleaner does not map a room or "see" walls where there are none.
• 🔋 After the firmware update, the device is slower or produces errors (Error 2, Error 9).
• 🎛️ Buttons on the body do not respond to pressing (except the power button).

If the vacuum cleaner is physically damaged (for example, after falling from a ladder or getting water), rebooting will not help - it requires repairs. The same applies to battery problems: if the robot discharges in 10 minutes or does not hold a charge, you need to replace the battery, not reset the settings.

⚠️ Warning: Don't confuse a reboot with a firmware update. If your vacuum cleaner is stable but it has an outdated version of the software, it's better to update it through the app rather than reset it. Resetting after the update can lead to loss of stored maps of the premises!

2.Soft reboot (restart) - the safest way

Soft restart is similar to restarting a smartphone: all settings are saved, and the device simply restarts the operating system, which helps in 90% of cases when the vacuum cleaner is “glutty”, but has no hardware damage.

How to make a soft reboot:

1. Find the Reset button on the vacuum cleaner body (usually located next to the power button or under the latch cover).
2. Press and hold it for 5-10 seconds until you hear a beep or see the lights go out.
3. Release the button - the vacuum cleaner will start restarting (it will take up to 1 minute).

If there is no Reset button (like some Mijia 1C models), use the combination:

Hold the power button (⏻) for 15 seconds → Release → Press once again to turn on.

After restarting, the vacuum cleaner will connect to Wi-Fi automatically, and the maps of the premises and cleaning settings will be saved. If the soft reboot does not help, move on to the following methods.

Make sure the vacuum cleaner is charged at least 30 times%|Disconnect him from the docking station|Check that there are no sources of interference (microwaves, routers 5 GHz)|Take a picture of the settings in the application (if you plan to completely reset)-->

3 Hard Reset – Complete resetting of settings

Hard resetting returns the vacuum cleaner to factory settings, which is an extreme measure that should only be applied if:

• 🔧 The soft reboot didn't help.
• 📲 The vacuum cleaner doesn't connect to the Wi-Fi or app even after a few attempts.
• 🗑️ The device is constantly producing the same error (e.g., Error 10 is a sensor problem).

Important: After a hard reset, the following will be removed:

• 🗺️ All saved room maps.
• 🔑 Wi-Fi connection data.
• ⚙️ Individual cleaning settings (power, schedule).

Hard reset instructions for most Xiaomi Mijia models:

1. Turn off the vacuum cleaner (hold the power button ⏻ for 3 seconds).
2. Turn the device over and find the Reset button (can be hidden under a rubber plug).
3. Press and hold Reset for 15-20 seconds until the white or orange light light lights up.
4. Release the button - the vacuum cleaner will emit an audible signal and begin the reset process (it will take 1-2 minutes).
5. After restarting, reset the device through the Mi Home app.

⚠️ Warning: In Mijia S5/S6 models, the Reset button can be paired with the Spot Cleaning button, in which case you need to hold it 30 for seconds to reset until the Wi-Fi indicator flashes.

4.Reboot via the Mi Home app (no physical buttons)

If your vacuum cleaner is connected to the Mi Home or Xiaomi Home app, you can try rebooting it software-based, which only works when you have a stable Wi-Fi connection.

Step-by-step:

1. Open the Mi Home app and select your vacuum cleaner.
2. Go to Settings. → About the device.
3. Click on the three dots in the top right corner and select Reboot.
4. Confirm the action - the vacuum cleaner will turn off and turn on again in 30-60 seconds.

If you don’t have a Reboot option, upgrade to the latest version of the app, which older versions of Mi Home (up to 6.0) may not have.

Advantages of the method:

• ✅ Does not require physical access to the vacuum cleaner.
• ✅ Stores all settings and maps of the premises.
• ✅ Device-safe (no risk of damaging buttons)

⚠️ Warning: If after the software reboot the vacuum cleaner stopped connecting to Wi-Fi, check if your network password has changed. Xiaomi robots do not support networks with WPA3 - use WPA2-PSK.

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If the vacuum cleaner doesn’t respond to commands from the app, but the indicators are on, try turning it off from Wi-Fi in the router settings (lock MAC- address to 1 for a minute), and then reconnect.This sometimes resets the “hang” network connection.

5.Reboot after firmware update: how to avoid errors

Xiaomi’s robot vacuum firmware updates come out regularly, but sometimes they cause failures. If the vacuum cleaner gets worse after the update (for example, it doesn’t build a map or it gives you an Error 2), try the following steps:

Step 1. Soft reboot

As described in Section 2, restart through the Reset button or power button. This helps 70% of the time.

Step 2: Re-update

If after the reboot the problems remain:

1. Open Mi Home and check the current firmware version in Settings → About the device.
2. If a new version is available, update the vacuum cleaner again.
3. If the current version is the latest, try rolling back (see below).

Step 3: Firmware rollback (for power users)

The rollback is only possible for models with an unlocked bootloader (for example, the Mijia S5 with firmware from third-party developers).

1. Download the desired firmware version from the 4PDA or XDA forum.


2. Connect the vacuum cleaner to the PC via USB-OTG (adapter required).




3. Use the MiRoBo or Valetudo utility for firmware.




4. After the rollback, perform a hard reset.

If you are not sure of your skills, you should contact a service center. Wrong rollback of the firmware can turn a vacuum cleaner into a brick.

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After any firmware update, give the vacuum cleaner 10-15 minutes to "fill" the new algorithms. Do not interrupt the first cleaning cycle, during which time the device calibrates the sensors.

6.Vacillier does not respond to reboot: what to do

If none of the methods worked, and the vacuum cleaner remains “dead” (it does not turn on, does not emit sounds, does not burn indicators), the reasons may be as follows:

• 🔋 The battery is out of order or out of order.
• 🔌 Power supply or charging dock is damaged.
• 🖥️ The motherboard burned (for example, after a voltage surge).
• 💧 Wetness got inside the hull.

Diagnostics and solutions:

If the vacuum cleaner does not show signs of life even after connecting to charging, try the following trick (works for models with a removable battery):

1. Remove the battery for 5 minutes.
2. Hold the power button ⏻ for 10 seconds (discharge the residual charge of the capacitors).
3. Insert the battery back and connect the charger.
4. Hold the power button for 15 seconds to force it to turn on.

If this does not help, most likely, repairs will be required in the service center, the average cost of diagnosis is 500-1000 rubles, the replacement of the fee is from 3000 rubles.

7. Frequent reboot errors and how to avoid them

Many users make mistakes that can make the problem worse, and here are the most common ones:

• 🔌 Reboot during a firmware update. This is the only time a reset is guaranteed to kill a vacuum cleaner, turning it into a brick. Always wait until the update is complete (the indicator should burn green).
• 📱 Use of informal firmware: Firmware from 4PDA or other forums may contain errors that will result in loss of functionality (e.g., a laser rangefinder will fail).
• 🔋 Reset at low battery power: If the battery is discharged below 20%, a hard reset may result in data loss or inability to turn on.
• 🗑️ Ignoring sensor errors. If the vacuum cleaner gives you an Error 9 (collision sensor problem), resetting won't help, you need to clean or replace the sensors.

How to avoid problems:

• ✅ Before reset, check the battery charge (optimally 50% or higher).
• ✅ Do not interrupt the reboot process (even if the vacuum cleaner appears to be getting stuck).
• ✅ After a hard reset, reconfigure the vacuum cleaner without restoring old cards (they may contain errors).

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If after the vacuum cleaner was discharged, it became worse to build a room map, perform calibration: put it on a flat surface and in the application select Settings → Additional → Calibration of sensors.

FAQ: Answers to Frequent Questions