How to flash Xiaomi 1S into Russian: all methods with instructions

Why Xiaomi 1S is sold without Russian language and can it be fixed?

Xiaomi Mi Robot Vacuum 1S (SDJQR02RR) is officially shipped to Russia with a multilingual interface, but some batches — especially those purchased on AliExpress or in Chinese stores — have firmware only in Chinese and English, which creates problems: voice prompts and the Mi Home app display characters, and updates through standard channels do not add Russian.

The reason is regional constraints: China firmware (CN) and Global are not just different languages, but also different update servers. But there is a solution, and it doesn't require soldering or deep technical knowledge. Next, we'll look at 3 working methods: official updates through the app, manual firmware through ADB, and custom firmware installation from enthusiasts.

⚠️ Important: Firmware with changing region (CN → Global) could result in a loss of warranty if the vacuum cleaner is purchased from Xiaomi's official store in Russia.Check the box for a sticker labeled RU — If you have one, your device already supports Russian.

Method 1: Officially Update with Mi Home (Safeest Method)

If your vacuum cleaner initially supports Russian but the language is not activated, try a forced update via the app.

Instructions:

• 📱 Install the latest version of Mi Home (not Mi Home Lite!) from Google Play or App Store.
• 🌍 In the Mi Home account settings, select the Russian Federation region – this is critical for the correct operation of update servers.
• 🔄 Connect the vacuum cleaner to Wi-Fi (2.4 GHz only!) and in its card in the application click ⋮ → Settings of the device → Firmware update.
• 🔍 If the update is not available, try to reset the vacuum cleaner to the factory settings: press the Home and Spot Clean button for 5 seconds until the signal sounds.

⚠️ Warning: If the vacuum cleaner stopped connecting to Wi-Fi after the reset, check if your router is blocking Chinese-certified devices. MAC-address and temporarily allow connections to api.io.mi.com servers.

Download the latest version of Mi Home|Select the region "Russia" in the profile|Connect the vacuum cleaner to 2.4 GHz Wi-Fi|Check the battery charge (minimum 50%)|Reset settings if the update is not available-->

Method 2: Manual update via ADB (for power users)

If the official method doesn't work, and your vacuum cleaner's firmware is Chinese (CN), you can force the global version to be flashed through ADB (Android Debug Bridge), which requires a Windows or Linux PC, but not a case opening.

What you need:

• 💻 Computer with drivers installed ADB (Download Platform Tools from Google).
• 🔌 USB-Micro-USB cable (combined with vacuum cleaner).
• 📄 Firmware for Xiaomi 1S Global (see the current version on the official website or forum) 4PDA).

Step-by-step:

1. Connect the vacuum cleaner to the PC via Micro-USB (the connector is under the cover next to the Reset button).
2. Open the command prompt (Win + R → cmd) and check the connection: adb devices If the device is not defined, install drivers for Rockchip RK3308 (vacuum chipset).
3. Download the firmware archive and unpack it into a folder with ADB. The firmware file should be called update.zip.
4. Follow the command to start the firmware: adb sideload update.zip The process will take 5-10 minutes. Don't turn off the cable! The vacuum cleaner will restart automatically.

🔹 Signs of successful firmware: after restarting, the vacuum cleaner will emit a long sound signal, and the option of choosing Russian language will appear in Mi Home.

Method 3: Castom firmware from the community (for enthusiasts)

If none of the above methods worked, there is an option with unofficial firmware created by enthusiasts (for example, Valetudo or modified Global versions), which gives full control over the vacuum cleaner, but deprives of warranties and can lead to irreversible damage to the loader if something is done wrong.

The advantages of custom firmware:

• 🌐 Full Russification (including voice prompts).
• 🚀 Advanced features: cleaning areas, suction power setting, integration with Home Assistant.
• 🔒 Ability to disable cloud authorization (vacuum cleaner will work without the Internet).

Cons and risks:

• ⚠️ Loss of warranty (even if the vacuum cleaner is purchased in Russia).
• 🔌 Probability of "bricking" (turning into a "brick") when a firmware error.
• 🔄 No official updates (we will have to keep an eye on community updates).

📌 Where to download? Active topics in forums:

4PDA (Section "Jointhouse Robots")

GitHub Valetudo (open source firmware)

Telegram chat on setting up Xiaomi vacuum cleaners.

adb backup -f backup.ab -apk -obb -shared -all -system

This will help restore the vacuum cleaner if something goes wrong.-->

Table: Comparison of firmware methods Xiaomi 1S in Russian

Frequent mistakes and their solutions

Even if you follow the instructions, you can have problems, and here are the most common ways to fix them:

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

The reason: the region change (CN → Global) resets the network settings.

• 📶 Restart router and vacuum cleaner (clip the Power for 10 seconds).
• 🔄 In Mi Home, remove the device and add it again by selecting the region of Russia.
• 🛠️ If it doesn’t help, drop the vacuum cleaner to the factory settings (Home buttons) + Spot Clean for 5 seconds).

2.Firmware through ADB is interrupted by 50%

Reasons:

• 🔌 Unstable. USB-Connection (try another cable or port).
• 💾 The damaged file update.zip (Download again and check the checksum MD5).
• 🔋 Battery discharge (charge must be at least 70%).

3. After the firmware, the vacuum cleaner does not turn on

This is the most serious case of damage to the bootloader.

• 🔌 Try the emergency firmware through the Rockchip Batch Tool (instructions here).
• 🛠️ Contact the service center (if the vacuum cleaner is guaranteed, do not mention the firmware!).

💡

If the vacuum cleaner has stopped responding to the buttons after a failed firmware, do not panic: in 90% of cases it can be restored through the Rockchip Batch Tool or flashing through Test Points (requires opening the case).

How to check that the firmware was successful?

After the update, you need to make sure that the Russian language is activated and all functions are working correctly.

1. Application interface: Open Mi Home, select a vacuum cleaner and check that all menu items are in Russian (e.g. Settings → Voice Packages).
2. Voice prompts: start cleaning - the vacuum cleaner should voice actions in Russian (for example, "The beginning of cleaning" or "Charging is completed").
3. Firmware Version: in Mi Home go to Device Settings → If the version starts with 3.5.8_ Or higher, and the region is listed as Global, all right.
4. Functionality: Check the operation of the main functions: 🧹 Cleaning on schedule. 📍 Preservation of the room map. 🔋 Return to base for charging.

⚠️ Attention: if after firmware vacuum cleaner became worse to keep in touch with the base or incorrectly builds the map, perform calibration of the sensors:

1. Place the vacuum cleaner on a flat surface (for example, on a table).
2. Press the Home and Spot Clean buttons for 3 seconds until the double signal is heard.
3. Wait 1-2 minutes – the vacuum cleaner will perform self-calibration.

FAQ: Answers to Frequent Questions