How to know exactly the model of the vacuum cleaner Xiaomi: a step-by-step guide with a photo

You've become the lucky owner of a Xiaomi robot vacuum cleaner, but you can't identify its exact model? This problem is familiar to many: the box has been thrown away long ago, the documentation is lost, and the device's case contains only the brand logo and a couple of incomprehensible numbers. Without knowing the model, it's difficult to pick up accessories, update the firmware or find repair instructions.

In this article, we will look at all possible ways of identifying, from the obvious (checking stickers and packaging) to the hidden (serial number analysis through service utilities), focus on Mi Home and Xiaomi Home, official applications where information is often hidden, and for owners of devices without access to original documentation, alternative methods using third-party resources are prepared.

Important: Some models (such as the Mi Robot Vacuum-Mop 2 Lite and Mi Robot Vacuum-Mop P) are almost identical in appearance, but have different specifications, so accurate identification is critical for proper operation.

Inspection of the case and factory stickers

The quickest way is to look at the vacuum cleaner's body carefully, and the manufacturer usually places the information in three places:

• 📌 Lower body (under the battery cover or next to the wheel) – often listed model in format MJXXX or STYJXXX.
• 🏷️ Service sticker with QR-code (usually silver or white) – contains the serial number and model.
• 🔋 Battery compartment – sometimes the model is duplicated on the inside of the cover.

Example: on Xiaomi Mi Robot Vacuum 1S, the model is listed as SDJQR02RR (this is the factory designation), and the documents may feature Mi Robot Vacuum-Mop Essential. To avoid confusion, check the compliance table below.

⚠️ Note: On some models (e.g. Viomi) V2 or dreame D9) The sticker can be hidden under the dust collector. Carefully remove the container so as not to damage the latches.

If the sticker is erased or missing, move on to the next method, and for owners of devices with Chinese characters on the case, a special section is prepared.

2. Check in the mobile application Mi Home / Xiaomi Home

The official Mi Home (old version) and Xiaomi Home (new) apps display a model of the connected device. Here's how to find this information:

1. Open the app and go to the Devices (or Devices) tab.
2. Choose your vacuum cleaner from the list.
3. Click on the three dots in the upper right corner → Settings → About the device.
4. The Model or Model block will have a factory designation (e.g. roborock.vacuum.s5 or viomi.vacuum.v7).

Tip: If the model name has roborock, then your device is released before the 2020 rebranding (for example, the Roborock S5 later became the Xiaomi Mi Robot Vacuum-Mop).

Name of the device in the list|Section "On the device"|Serial number in settings|Firmware version (to clarify the model)-->

If the vacuum cleaner is not connected to the app, try the serial number method, and devices purchased on AliExpress or in unofficial stores may need to be checked through third-party services.

Decoding of the serial number

The serial number (SN) of Xiaomi vacuum cleaner contains encrypted information about the model, the date of production and even the region of delivery. It is usually consisting of 14-16 characters and has the format:

XX XXX XXXX XXXX


| | | |




| | | +-- Serial number




| | +------ Production date (week/year)




| +----------- Model code




+--------------- Factory code

Example: Serial number 8J 1A2 3018 0001 stands for:

• 8J - factory in China;
• 1A2 is a model of Mi Robot Vacuum-Mop 2 Lite.
• 3018 – 30th week of 2018;
• 0001 is the first copy from the conveyor.

To find out the model by SN:

1. Find the serial number on the sticker or in the Xiaomi Home app.
2. Go to mi-code.com (unofficial service).
3. Enter SN in the search box – the system will show the model and release date.

⚠️ Note: Some models (e.g. Dreame Bot) Z10 Pros have a unique format SN, not compatible with Xiaomi services. In this case, use the firmware method.

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If the serial number is not recognized, try entering it without spaces or dashes. Some services require the format XXXXXXXXXXXXXXXXXX (14 characters in a row).

Table of conformity of models and codes

The manufacturer uses different designations for the same model depending on the region, for example, the Roborock S6 in China is sold as STYJ02YM, and in Europe as Xiaomi Mi Robot Vacuum-Mop Pro. Below is the current table of correspondence (data for 2026):

If your model is not in the spreadsheet, check the firmware version, which often contains a unique model ID, and you can also use the 4PDA database, where users collect information about rare devices.

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Manufacturer code (e.g. SDJQR02RR) is the most reliable way to identify the model, as the name of the model may vary in different regions.

5. Definition of the model through firmware

The vacuum cleaner firmware stores the model data in the service files to extract it:

1. Connect the vacuum cleaner to Xiaomi Home.
2. Go to Settings → About the device → The firmware version.
3. Write down the full version number (for example, 3.5.8_0043).
4. Enter this number in the search engine along with the phrase Xiaomi vacuum firmware.

Example: for firmware 1.8.0_0021 The search will show that it is designed for Mi Robot Vacuum-Mop Essential (SDJQR02RR). This method works even for devices without stickers.

The alternative way is to use ADB-Teams (for advanced users):

adb shell getprop ro.product.model

This command will output the exact model code, but requires USB connectivity and developer mode enabled.

6. Third-party services and communities

If standard methods do not help, refer to the databases of enthusiasts:

• 🌍 4PDA — Xiaomi topics have detailed tables with photos and model codes.
• 🔍 Mi Code – mi-code.com recognizes models by serial number.
• 📦 AliExpress – type articles from a sticker into the search (for example, SDJQR02RR) See what kind of device the sellers offer.
• 💬 Reddit - subreddits r/Xiaomi and r/roborock Help with identification by photo.

Example of a search query: Xiaomi vacuum SDJQR02RR vs STYJ03YM difference site:4pda.to. Add site: to search for a specific resource.

⚠️ Note: On AliExpress and eBay, sellers sometimes indicate the wrong model in the description.

Critical information: If you bought a used vacuum cleaner, check it with the serial number on the Xiaomi website (mi.com/global/verify).

7. Features of Chinese models

Vacuum cleaners manufactured for the Chinese market (e.g. Viomi or Mijia) often have:

• 📜 Hieroglyphs on the body and in documents;
• 🔢 Unique model codes (e.g., model codes, VIOMI.V7 instead SDJQR...);
• 📱 Lack of support for Mi Home versions.

To identify such a device:

1. Take a picture of the hieroglyphic sticker.
2. Use Google Translate with the photo text recognition feature.
3. Enter the translated name in the search engine along with the word Xiaomi.

Example: the characters translate as Mijia Sweeping Robot, which is a line of Mi Robot Vacuum. For a precise model definition, check the table.

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Chinese models often have advanced features (such as automatic water change in the Viomi V3), but may not support Russian in firmware.

8 Advanced Methods: ADB and Technical Documentation

If the vacuum cleaner is not turned on or determined by the application, there are two ways:

1. ADB-commands (requires) USB-OTG Adapter and PC: Adb devices adb shell getprop ro.product.model adb shell getprop ro.product.brand These commands will show the device model and brand.
2. Disassembly (for power users): Remove the bottom cover (unscrew 4 screws). Find a sticker on the motherboard, which shows the full model code. Take a picture of the board and compare it to the iFixit base.

Warning: Disassembly will void warranty. If the vacuum cleaner is warranty, contact the Xiaomi service center to request the identification of the model by serial number.

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ADB-This method is only suitable for debugging-enabled devices (usually 2020 and newer models). 1st Gen) use visual identification.

FAQ: Frequent questions