How to Russify the robot vacuum cleaner Xiaomi Roborock S50: 4 proven ways

Xiaomi Roborock S50

all working methods of Russification

Mi Home

Although the Roborock S50 was released a few years ago, its relevance is not lost: the device is still sold, updated and supported by the community, but the manufacturer did not add Russian to the official firmware for this model β€” unlike newer versions like the S6 or S7, which means that for full Russification you will have to use workarounds.

If you don’t want to risk firmware, you can limit yourself to partial Russification via the Mi Home app (the menu will be in Russian, and voice prompts will not). Full translation will require custom firmware installation, which requires some technical skills. We will describe both options in detail, and also tell you how to avoid typical update errors.

Why does Roborock S50 not officially support Russian?

The Roborock S50 was originally designed for the Chinese market, where English was considered sufficient for export versions. Later Xiaomi added support for Russian to newer models (S5 Max, S6, S7), but updates for the S50 never came out.

There are several reasons why the manufacturer did not release Russification:

  • πŸ“… Outdated hardware platform: S50 processor STM32 with limited memory, making it difficult to add new languages without losing stability.
  • πŸ’° Economic feasibility: Xiaomi is focusing on promoting new models where Russification is already built in.
  • πŸ”’ Regional restrictions: Official firmware for S50 Linked to the Chinese server Mi Home, where Russian is not provided.

However, a community of enthusiasts has created alternative firmware that supports Russian, Ukrainian and other languages, not only translating the interface, but also adding new features, such as integration with Yandex Alice or Google Assistant.

Before you start Russification, check the current firmware version of your Roborock S50.

  1. Open the app and select your vacuum cleaner.
  2. Go to Settings β†’ About the device β†’ Firmware version.
  3. Write down the version number (for example, 3.5.8_002334).
πŸ“Š What kind of firmware do you prefer for smart technology?
Official (stability is more important)
Castomy (more functions)
I don't know what to choose.

Method 1: Partial Russification through Mi Home (without firmware)

If you only want to Russify the application interface, not the voice cues of the vacuum cleaner, this method is best suited. It does not require technical skills and takes less than 5 minutes.

Step-by-step:

  1. Install the Mi Home app (version for Russia) from Google Play or the App Store.
  2. Sign up or sign in to Xiaomi account (be sure to choose the region of Russia when registering!).
  3. Add a robot vacuum cleaner to the app: πŸ”Œ Turn on the vacuum cleaner and make sure it emits an audible signal. πŸ“± At Mi Home, press + β†’ Addition of a device β†’ Robot vacuum cleaner. πŸ” Choose the Roborock Sweep One (S50). πŸ“Ά Connect to the Wi-Fi vacuum cleaner network (the network name will be roborock-vacuum-XXXXX type).

After connecting the application interface will automatically switch to Russian.

⚠️ Note: This method does not Russify the vacuum cleaner’s voice prompts (they will remain in Chinese or English), and some features, such as Cleaning Zones or Schedule, may be displayed in English if the device’s firmware is outdated.

If the device is not supported in your region after connecting to Mi Home, try changing the account region:

  1. Go to Profile β†’ Settings β†’ Region.
  2. Select China (only to add the device!).
  3. After adding a vacuum cleaner, return the region back to Russia.

Step-by-step:

  1. Download the firmware for Roborock S50 (the file will be in.bin format).
  2. Unplug the vacuum cleaner: Unscrew the 4 screws on the bottom cover. Carefully remove the lid to access the motherboard. Find a USB Type-C connector (usually located next to the battery).

Connect the vacuum cleaner to the computer

USB-C

STM32 Flash Loader

Download the firmware.

STM32 Flash Loader

Valetudo

Get the vacuum cleaner together.

roborock-valetudo-XXXX

Set up Valetudo

http://192.168.X.X

X.X

If the vacuum cleaner does not turn on after firmware or gives an error, try:

  • πŸ”„ Refuse the device again.
  • πŸ”‹ Check battery connection (sometimes contacts leave during assembly).
  • πŸ“‘ Reset your Wi-Fi settings (press the Reset button for 10 seconds).
What if the vacuum cleaner does not respond to the buttons after the firmware?
If the vacuum cleaner doesn't turn on after Valetudo is installed, there's probably a memory write error, in which case only re-running through the STM32 Flash Loader in Full Chip Erase mode will help. If that doesn't help, check the integrity of the USB-C cable and contacts on the board.

Method 3: Russification through third-party applications (Mi Home Mod)

If you don't want to take out the vacuum cleaner, but you need to Russify the interface, you can use modified versions of the Mi Home, which allows you to connect devices from other regions without changing your account.

Pros of the method:

    Cons:

      Instructions:

      1. Launch the app and log in to your Xiaomi account.

      ⚠️ Note: Using modified versions of Mi Home can result in a Xiaomi account being blocked.If your account is important (e.g., other smart home devices are linked to it), it is best to use the official app or method with Valetudo.

      Install APK from a trusted source |Allow installation from unknown sources | Backup Mi Home | Check account region (China) | Connect to Wi-Fi vacuum cleaner-->

      Method 4: Russification of voice prompts (for Valetudo firmware only)

      If you have Valetudo installed, but the voice prompts are in English, you can Russify them separately, and this requires you to download the Russian voice packet and replace the standard files with it.

      Instructions:

      1. Download the Russian voice package for Roborock S50 (files in.mp3).
      2. Connect to the vacuum cleaner by SSH (instructions are in the documentation Valetudo).
      3. Go to the folder with voice files: cd /opt/valetudo/voices
      4. Replace existing files with downloaded ones (names must match!).
      5. Reboot the vacuum cleaner: reboot

      If the voice does not appear after the replacement, check:

      • πŸ”Š File format (should be) MP3, 16 kHz, mono).
      • πŸ“ File access rights (must be 755).
      • πŸ”§ Settings in Valetudo (in the Voice Pack section, select Russian).

      Important: Some voice packets may contain pronunciation errors. Check for feedback on forums (e.g. 4PDA or GitHub) before installing.

      Comparison of Russification Methods: What to Choose?

      To make it easier for you to determine, we have compiled a comparative table of all ways:

      MethodDifficultyRussification of the interfaceRussification of voiceRisks.Additional functions
      Mi Home (official)⭐ (simple)βœ… Yes.❌ No.No.Standard.
      Mi Home Mod⭐⭐ (middle-of-the-road)βœ… Yes.❌ No.Account lockdownStandard.
      Valetudo⭐⭐⭐⭐ (difficult)βœ… Yes.βœ… Yes (for file replacements)Loss of warranty, risk of "bricking"Advanced settings, local work
      Replacement of voice packet⭐⭐⭐ (requires Valetudo)❌ No.βœ… Yes.Pronunciation errorsNo.

      Selection recommendations:

      • 🏠 If you only need Russian in the app – use the official Mi Home.
      • πŸ› οΈ If you are willing to risk for the sake of complete Russification – install Valetudo.
      • πŸ”Š If only voice prompts are important, replace them separately after installing Valetudo.

      πŸ’‘

      Valetudo is the only way to get complete Russification, but it requires technical skills.If you are not confident in your abilities, start with the official Mi Home or consult a specialist.

      Typical errors and their solutions

      When russifying the Roborock S50, users often face typical problems, and we've collected the most common ways to solve them:

      1.Vacuum cleaner doesn't connect to Wi-Fi

      • πŸ”Œ Check that the router is running at 2.4 GHz (5 GHz not supported!).
      • πŸ“Ά Reboot the router and vacuum cleaner.
      • πŸ”‘ Make sure your Wi-Fi password does not contain Cyrillic or special characters.

      2.After Valetudo firmware, the vacuum cleaner does not turn on

      • πŸ”„ Try to refashion the device from scratch.
      • πŸ”‹ Check battery connection (sometimes contacts leave during assembly).
      • πŸ› οΈ If nothing helps, go to the Valetudo forum with error logs.

      3.Mi Home displays an error that says "The device is not supported in your region"

      • 🌏 Change your account region to China (only to add a device!).
      • πŸ“± Install Mi Home Mod or use it VPN Connecting to a Chinese server.

      4. Voice prompts in Russian sound incorrect

      • πŸ”Š Check the format of the voice files (should be) MP3, 16 kHz, mono).
      • πŸ“ Make sure that the file names match the original ones.
      • πŸ”§ Update Valetudo to the latest version.

      5. After Russification, some functions (zonal cleaning, maps) disappeared

      • πŸ—ΊοΈ Check the firmware version (some features only work on the latest Valetudo builds).
      • πŸ”„ Reset the vacuum cleaner settings to the factory and set up again.

      FAQ: Frequently Asked Questions

      ❓ Can Roborock be Russified? S50 loss of guarantee?
      Yes, if you use the official Mi Home or Mi Home Mod application. Install custom firmware (Valetudo) removes the warranty, as it requires opening the case and changing the software.
      ❓ Will voice prompts work in Russian after Russification?
      The official Mi Home doesn't. When using Valetudo, voice prompts can be Russified separately, replacing the audio files, but the quality of the voiceover may differ from the original.
      ❓ How to return the original firmware if something goes wrong?
      To return to the factory firmware you need: Download the original firmware for Roborock S50 (for example, 4PDA). Connect the vacuum cleaner to the computer through USB-C. Switch the device through STM32 Flash Loader in Full Chip Erase mode. ⚠️ Warning: Incorrect firmware repair can permanently disable the vacuum cleaner. If you're not sure, contact the service center.
      ❓ Does Russification Work on Roborock? S50 post-firmware update?
      If you’ve used Valetudo, the official firmware updates are automatically disabled – they can overwrite custom firmware. In Mi Home, the updates don’t affect the interface language, but they can reset some settings.
      ❓ Can Roborock be Russified? S50 via Yandex Alice?
      No, Yandex Alice doesn't translate the vacuum cleaner interface. However, after installing Valetudo, you can integrate the vacuum cleaner with Alice for voice control (but commands will still be executed in English if you don't replace the voice packet).