Introduction
Have you just purchased a new Xiaomi device or want to check the real-world settings of an old gadget? Maybe you need to compare the data claimed by the manufacturer with the actual data, find the hidden features of the chipset or just make sure that the seller did not cheat with the configuration. In this article, we will analyze all possible ways to view the characteristics, from standard menus to engineering modes that only advanced users know.
It is important to understand that the methods differ depending on the type of device: for Redmi, POCO or Mi smartphones, one instruction will suit, for Mi TVs – different, and for Mi Band fitness bracelets – third. We will look at universal solutions and specific techniques for each category of equipment. If you did not find your model in the examples, do not worry: the principles of operation are the same for 90% of Xiaomi devices of the last 5 years.
We will focus on hidden parameters that are not displayed in standard settings, such as how to find out the real capacity of the battery after 2 years of operation or check the supported 5G frequencies on the Snapdragon 8 Gen 2.
Method 1: Standard Android settings (for smartphones and tablets)
The easiest method is to use built-in system menus, which are suitable for all Xiaomi MIUI-based smartphones (including POCO and Black Shark) and do not require additional apps to be installed.
- Open the Settings app (cog icon).
- Scroll down and select About Phone (or About Device on some versions).
- Here you will see the basic information: 📱 Device model (e.g. Redmi Note 12 Pro)+ 5G) 🔄 Version. MIUI Android 🔋 Battery state (charge level only, without capacity) 📊 Total memory (without detailing by type)
MIUI version
extension
Limitation of this method: it displays only basic information without detailing on the processor, RAM frequencies or support for specific technologies (for example, Wi-Fi 6E or UFS 3.1).
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If there is no “Battery Status” item in the About Phone section, try entering the code ##4636## in the phone app, which will open a hidden menu with battery and network data.
Method 2: Engineering menu (codes and hidden functions)
For experienced users who need technical details (e.g., for example, IMEI, sensor data or module parameters NFC), It's an engineering menu, and it's available through a special menu. USSD-Important: Not all codes work on new models due to Xiaomi limitations.
| Code. | Appointment | Works on |
|---|---|---|
| ##4636## | Information on battery, network, usage statistics | All models on Android |
| ##225## | Checking the calibration of the display (colors, sensor) | Redmi, POCO (except for the flagships 2023+) |
| ##6484## | Bluetooth and Wi-Fi module test | Qualcomm models (e.g. Xiaomi 13T) |
| ##64663## | Diagnostics of GPS and GLONASS | All smartphones with GPS-module |
⚠️ Note: Some codes (e.g. #36446337## for the camera test) may cause the camera settings to reset or the module to temporarily fail.
What to do if the code doesn't work?
Method 3: Diagnostic applications (CPU-Z, AIDA64, DevCheck)
Third-party utilities provide the most complete information about the hardware, including data that is hidden in standard settings. 10 popular applications and selected the top-3 for Xiaomi devices:
- 📊 CPU-Z — shows the processor model, core frequencies, memory type (LPDDR5), Screen resolution and sensors. The free version is pretty functional.
- 🔍 AIDA64 — Extended alternative with performance test support, displays component serial numbers and temperature in real time.
- 🛠️ DevCheck is a user-friendly interface with data visualization, showing supported code and communication standards (for example, aptX Adaptive for Bluetooth).
Example of data from CPU-Z for Xiaomi 12S Ultra:
Processor: Qualcomm Snapdragon 8+ Gen 1 (4 nm)
Cores: 1x3.2 GHz (Cortex-X2) + 3x2.75 GHz (Cortex-A710) + 4x1.8 GHz (Cortex-A510)
GPU: Adreno 730 @ 900 MHz
RAM: 12 GB (LPDDR5, 3200 MHz)
Storage: 256 GB (UFS 3.1)⚠️ Note: On some models (e.g, POCO F5) Applications may show incorrect battery information due to Xiaomi limitations. Use AccuBattery for accurate data (calibration required within a period of time). 2-3 charge-cycle).
Method 4: Viewing the characteristics on Mi TV and Mi Box
Xiaomi's smart TVs and consoles have their own PatchWall interface, where hardware data is hidden deeper than on smartphones.
- On the remote, click Settings (cog icon).
- Go to About the device. → General information.
- This is where they'll show up: 📺 Model TV (e.g. Mi) TV Q2 55") 🔄 Firmware version (e.g, MIUI TV 3.0.12) 📶 Type of connection (Wi-Fi) 5/6, Ethernet) 🎮 Support HDR (Dolby Vision, HDR10+)
hidden parameters
Menu → Settings → All Settings → Device Preferences → About
On the Mi Box S and Mi Stick, the path is different: Settings → Device → About the software. Here you can see the processor type (e.g., Amlogic S905X3) and the version of Google TV.
Check the model on the official Xiaomi website (does it match the sticker)
Make sure you support the right HDR standards
Check for everyone. HDMI-Ports (on some models there are 2, not 3)
Run a 4K@60fps test video to check the performance-->
Method 5: Characteristics of wearable devices (Mi Band, Watch, Buds)
For the Mi Band 7/8 fitness bracelets, Xiaomi Watch 2 Pro smartwatches or Buds 4 Pro headphones, the hardware data is usually hidden.
- 📱 Official Annex to Mi Fitness/Zepp Life: Connect the device to your phone. Open your profile. → Settings → This is the firmware version, the serial number and the charge level.
Hidden menu
Mi Band
- On the screen of the bracelet, swipe up 5 times in a row.
- A menu with a version of the software will appear and MAC-Bluetooth address.
Third-party utilities
Notify & Fitness for Mi Band
heart-rate sensor
GPS+GLONASS
⚠️ Attention: On Xiaomi Watch S3 And new models, trying to enter the engineering menu through gestures can lead to locking the sensor.
Method 6: Testing performance through ADB (for advanced)
If you want the most accurate data (for example, to diagnose malfunctions or modify firmware), use Android Debug Bridge (ADB).
Instructions:
- Turn on Developer Mode on your smartphone: Settings → About Phone → MIUI version (click 7 times).
- Activate Debugging by USB in Settings → Additional → For developers.
- Connect your phone to your PC and execute commands: adb shell getprop ro.product.model # Adb shell cat /proc/cpuinfo # Information about adb shell dumpsys battery processor # Full battery data adb shell pm list packages -f # List of installed applications
Example of output for the POCO F4 GT:
ro.product.model=22041216C
Processor: arm64, Qualcomm SD8 Gen1, 8 cores
Battery health: 92%, capacity: 4200/4700 mAh⚠️ Note: Adb shell su commands (for root access) can violate warranty and lead to Bootloader blocking on new Xiaomi models.
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ADB is the only way to know the actual battery capacity after wear, and standard applications only show data from the power controller, which may be inaccurate.