Owners of Xiaomi, Redmi and POCO smartphones often face the need to clarify the technical details of their device. One of the most important characteristics hidden in the depths of the menu is the build number. This ID is not just a set of numbers and letters, but the key to understanding which version of the operating system is installed on your gadget right now.
Knowing the exact build is essential when installing patches, finding bug solutions, or communicating with technical support. The build number is the unique identifier of the particular firmware version currently installed on the device. Without that information, it is difficult to determine whether your software is up to date or needs an update.
In this article, we'll go into detail about all the ways you can get this information, and you'll learn how to find data through a standard menu, use engineering codes, and even use computer tools for diagnostics, which will help you better understand your smartphone's device.
Why you need to know the version of the firmware assembly
Many users ignore this option until they encounter application compatibility issues or system errors. The build number allows you to accurately identify the software revision. Unlike the simple version of Android or MIUI (HyperOS), the build contains information about the compilation date and regional features.
When you search for solutions on forums (like 4PDA or XDA), you will always be asked about the build, which is critical because a patch running on one version can cause a bootloop to another, and this knowledge is also necessary for enthusiasts who plan to unlock a bootloader or install custom Recovery.
In addition, knowing the exact number helps track the effectiveness of updates over the air, sometimes automatic updates may not come due to conflict of regions or the version of the base build, in which case manual verification becomes the only way to diagnose.
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Always write down the build number before resetting or flashing, which will allow you to return to the original state in case of failure.
The main way through smartphone settings
The easiest and most secure way to get information about a system doesn't require a computer connection or third-party software installation. All the data you need is already in your device's system menu. However, the interface may vary slightly depending on the version of MIUI or HyperOS.
To start, open the main menu and find the Settings icon, which is usually located at the top of the app list and looks like a gear, and then the action algorithm is as follows:
- 📱 Click on the “About Phone” item at the top of the list.
- 🔍 Find the line "Version" MIUI» (or “HyperOS version»).
- 👆 Make some quick presses (5-7 time) by logo version of the system.
After doing this, a pop-up will appear on the screen with the message “Additional Features Activated,” which is when the full build number will appear under the main firmware version, which looks like a long string of characters, such as V14.0.3.0.TKGMIXM.
☑️ Software version check
It is important to note that in some shells (especially in the Chinese versions without Google services), the path may be slightly different. Sometimes you need to go to Settings → About Phone → All settings. If the standard path does not work, try searching by settings by entering the word “version”.
Decoding the structure of the assembly number
It's not enough to see the code, it's important to be able to read it. The build number on Xiaomi devices follows a strict coding logic, and once you understand it, you can understand what region the firmware is designed for and how fresh it is.
Consider an example of code: V12.5.4.0.RGDEUXM. The sequence of characters at the end of the line carries key information:
- 🌍 Regional code: two letters after Android (in example «EU») point out. CN — China, Global - Global, RU — Russia/CIS, IN — India.
- 🤖 Android Version: One letter before the regional code (in example, "R") denotes the Android version (R - Android 11, S - Android 12, T - Android 13, U - Android 14).
- 📱 Device code: two letters before the Android version (in example «GD») — It is the internal code name of the smartphone model.
Understanding this structure helps to avoid installing inappropriate firmware, such as trying to install the Chinese version (CN) on a global device can lead to the inoperability of banking applications and the absence of Russian. Always check regional codes before any manipulation of the software.
Android code table
Use of engineering menus and codes
For more advanced users, there is a way to get detailed information through an engineering menu, which allows you to see not only the build number, but also the hardware data that is hidden from the average user. But beware: changing the settings in this menu can disrupt the phone.
To enter the test menu, open the Phone app and dial ##6484##. The screen will show a list of tests, and you can find the version information in Version Information or similar.
⚠️ Warning: Never change the parameters in the engineering menu unless you know exactly what they are for.This can result in loss of network signal or screen calibration.
Another code, ##4636##, opens the testing menu, and you can see more technical information when you go to Phone Information, although the full build number is not always displayed, often just the basic version of the software.
Checking through computer and ADB
If the screen of the smartphone is broken or the touch screen does not respond, you can get information through a connection to a PC. This will require the utility ADB (Android Debug Bridge), which is considered the most professional method and gives 100% accurate results.
First, you need to activate the USB debugging in the Developer menu, then connect the phone to your computer and start the command line. Type the following command:
adb shell getprop ro.build.display.idThe system will give you the exact build number, and you can also use the adb shell getprop command, which will display a complete list of all the system properties, where you can find the ro.build.version.incremental string, which is indispensable for remote diagnosis or automated script analysis of devices.
To work, ADB requires installing Xiaomi drivers and the SDK Tools platform on your computer, and without the installed drivers, your computer will not be able to correctly recognize the device in debugging mode.
Comparison of firmware versions in the table
To make it easier for you to navigate build types, we've created a comparison table that will help you understand the difference between stable versions and developer versions.
| Type of assembly | Designation | Stability | For whom? |
|---|---|---|---|
| Stable | No letters or S | Tall. | Regular users |
| Beta | Letter B | Medium | Testers |
| Developer | Letter D | Low. | Developers |
| China | CN code | Tall. | Users in China |
As you can see from the table, only stable builds are suitable for everyday use. Beta versions can contain errors that affect battery life or communication stability. If you're not testing, stay away from Beta-labeled builds.
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Always choose a stable build for the main smartphone to ensure data security and stable communication.