You bought a used Xiaomi Redmi Note 12 and you want to make sure that the seller didn't lie about the storage capacity? Or you plan to upgrade your firmware to a Mi TV Stick but don't know the exact model of the chipset? Or maybe you're just curious, what sensors are hiding under the body of your POCO F5? You can find out the characteristics of Xiaomi devices in a dozen ways, from standard menus to engineering modes. But not all of them are equally accurate and safe.
In this article, we will analyze 7 working methods - from the simplest (via phone settings) to advanced (using the use of the phone). ADB-You'll learn how to check the processor, RAM, battery capacity, version. MIUI And even hidden screen settings (like the actual refresh rate), and how to tell the difference between the original device and the fake one by serial number, and why data from some apps can lie.
Important: The methods work for all Xiaomi, Redmi, POCO and Black Shark devices based on MIUI or HyperOS, including smartphones, tablets, smartwatches and TVs. Some methods will require an Internet or computer connection.
1. Standard phone settings: basic information
The fastest way is to look at the About Phone menu, and here you will find the device model, the MIUI version, the RAM and ROM capacity, and the processor data (though not complete).
- Open the settings (cog icon).
- Go to About Phone (in some versions of MIUI – About Device).
- Slip on the item All characteristics or characteristics of the device.
- Scroll down to see data about the processor, screen, cameras and battery.
⚠️ Note: This menu often indicates overcapacity (e.g., 5000 mAh instead of the actual 4850 mAh) This is a marketing ploy – the actual capacity can only be checked through an engineering menu or specialized applications.
What can I find out here:
- 📱 Device model (e.g. Redmi Note 11 Pro) 5G or M2101K6G — code).
- 🖥️ Version. MIUI/HyperOS and build number (useful for finding firmware).
- 🔋 CPU type (e.g. Qualcomm Snapdragon 695, but without core details).
- 📸 Main camera resolution (but no sensor or aperture information).
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If there is no “All specs” item in the About Phone section, try tapping 5-7 times on the line with the MIUI version. This will open a hidden menu for developers (if it is not already activated).
2.Service codes: hidden data without applications
With help. USSD-You can get data from code and engineering commands that are not shown in the standard settings, and these codes work on all Xiaomi devices regardless of the firmware version.
The most useful combinations:
| Code. | What shows | Example of data |
|---|---|---|
| ##4636## | Information about battery, network, use | Charge level: 87%, temperature: 34°C, battery health: 92% |
| ##225## | Date of production, serial number | Manufacture Date: 2023-05-15, S/N: ABC123456789 |
| ##6484## | Test of hardware modules (camera, speaker, vibration) | Camera: OK, Speaker: Fail (Check the speaker!) |
| ##64663## | Information about Wi-Fi and Bluetooth module | Wi-Fi MAC: 00:11:22:33:44:55, Bluetooth: 5.2 |
⚠️ Note: Code ##36446337## (for screen test) may reset color settings on some models POCO. Do not use it unnecessarily!
How to enter codes:
- Open the Phone app.
- Enter the combination as if you were dialing a number.
- Press the call button and the engineering menu will open.
What if the code doesn't work?
3. Diagnostic applications: CPU-Z, AIDA64 and alternatives
Standard settings and service codes provide only a fraction of the information, and for a complete analysis of the hardware, it is better to use specialized utilities, which will show the actual frequency of the processor, the type of memory, the 5G networks supported, and even the temperature of the sensors.
Top.-5 applications:
- 📊 CPU-Z — It shows the chipset model, core architecture, GPU Plus: it works without the Internet.
- 🔍 AIDA64 — The most detailed report (including sensors, sensors and bootloader version) Plus: export data to the file.
- 🔋 AccuBattery analyzes battery health, real capacity and charging speed. Plus: shows charging cycles. Minus: requires calibration (multiple full discharges).
- 📱 DevCheck – a user-friendly interface with data about cameras, screen (PPi, HDR), Plus: Shows the actual refresh rate of the screen (rather than the claimed refresh rate).
- 🛠️ Mi Check (official from Xiaomi) – checks the originality of components and compatibility with the MIUI. Plus: integration with Xiaomi servers. minus: not working on all models.
Important: Applications like CPU-Z can show incorrect information about the processor on custom firmware devices (for example, on POCO with an unlocked bootloader), in which case the data is better checked through ADB.
4. Verification through ADB: for advanced users
If you want the most accurate data (for example, to compare with the official specifications before buying a used device), use Android Debug Bridge (ADB), which requires a computer but gives access to hidden parameters that do not show the application.
What you can learn through ADB:
- 🔧 Real-life motherboard model (useful for checking originality).
- 📡 Supported ranges 4G/5G (travel-related).
- 🔋 The exact capacity of the battery (in mAh, not in percentages).
- 🖥️ Screen resolution and refresh rate information (including dynamic frequency).
Instructions:
- Install. ADB-computer-driver.
- Enable USB debugging in the developer settings (Settings → About Phone → MIUI version – tap 7 times, then go back to Additional → For Developers).
- Connect the device to your PC and type in the command line: adb shell getprop ro.product.model This will show the exact model of the device.
- To check the battery, use: adb shell dumpsys battery Look for the lines of capacity (current charge) and voltage (voltage).
Install Platform Tools on PC|
Enable debugging over USB on your phone |
Connect the phone with the original cable |
Check the connection with the command `adb devices`|
Make a backup copy of the data (just in case)-->
⚠️ Attention: Teams ADB For example, if you type in the adb shell setprop persist.sys.language ru, you change the language to Russian, but a typo in the parameter will cause a failure!
5.Official sources: Xiaomi website and databases
If you want to check the specifications of your device with official data, use resources from Xiaomi. This is especially useful when buying used equipment - so you make sure that the seller does not hide defects (for example, a replaced battery or a non-original screen).
Where to look:
- 🌍 Xiaomi official website – type the model into a search (e.g. Redmi) K50 Gaming) and go to the specs page. Plus: the data is verified by the manufacturer. Cons: no information about the specific device (only general for the model).
- 🔍 Base IMEI — number-wise IMEI (If you can find out by typing *#06#, check here the originality of the device and the date of production. Plus: shows the country of manufacture. SIM-cards (tablets, smart watches).
- 📄 Documentation. MIUI — site MIUI Doc can be found for specific models, plus diagrams and descriptions of iron components.
How to check the originality by serial number:
- Find the serial number in Settings → About Phone → General information or on the box.
- Go to the Xiaomi verification page.
- Enter the serial number and the captcha, and the system will show you if the device is original and if it is not listed as stolen.
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If the data from the official website does not match what the applications show (for example, a different processor or memory capacity), the device could be reflashed or replaced with components, which is a good reason to refuse to buy used equipment.
6. Check smart Xiaomi devices (watches, bracelets, TV)
For Mi Band, Xiaomi Watch or Mi TV gadgets, the standard methods are not suitable.
How to find out the characteristics:
- ⌚ Smart watches/bracelets: 📱 Use the official Mi Fitness or Zepp Life app (Device section) → About the programme). 🔋 To check the battery enter in the browser https://home.mi.com/ → Select the device → Settings → Battery status.
- 📺 Televisions and consoles (Mi) TV, Mi Box): 🎮 Go to Settings. → About the system → About the device. 🔍 For detailed information, use the app. TV Hardware Info (available on Google Play for Android) TV).
- 💡 Smart home (lamps, sockets, robot vacuum cleaners): 📱 Open Mi Home → Select the device → Settings → About the device. 🔧 For vacuum cleaners (e.g. Xiaomi Robot Vacuum), firmware and sensor data can be seen in the General Settings section. → About the programme.
⚠️ Note: On Xiaomi devices with firmware for the Chinese market (CN ROM) The About Phone section can hide real-world specs (e.g., show 8GB of RAM instead of 6GB). To see the truth, reflash the device to the global version. MIUI or hyperos.
7. Comparison with other devices: benchmark and tests
If you want to not only know the specs, but also compare them to other models, use benchmarks to show how much more efficient or weaker your device is.
The best tools for testing:
- 📈 AnTuTu Benchmark - Ratings CPU, GPU, memory UX. Plus: big base for comparison. Minus: heats up the device.
- 🎮 3DMark — It tests graphic performance (relevant to gamers). Plus: supports Ray Tracing.
- 🔋 PCMark – Tests performance in everyday tasks (documentation, web surfing) plus realistic scenarios. Minus: long test.
- 📱 Geekbench 6 – Tests multi-core performance CPU and AI-Plus: cross-platform (comparable to the iPhone).
How to interpret the results:
- Compare scores only with devices on a single chipset (e.g. Snapdragon 8 Gen 2 vs Snapdragon 8 Gen 2).
- Consider temperature trottling: if the device overheats, the results will be underestimated.
- For objectivity, run tests 3 times in a row and take the average value.
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Before starting the benchmarks, close all background applications and turn off synchronization – this will increase the accuracy of the tests. If the device is too warm, take a break between tests (10-15 minutes).