How to find the Android version on Xiaomi Redmi 9

Series smartphones Redmi 9 remain one of the most popular devices in the budget segment, but over time, users often face the need to clarify the current state of the software. Knowing the exact information is critical when installing specific applications, solving compatibility problems, or preparing to sell a gadget. Many owners confuse the shell version operating system versions critical when installing specific applications, solving compatibility problems, or preparing to sell a gadget. Many owners confuse the shell version MIUI with the basic version Android, which leads to misunderstanding when searching for solutions to technical problems on forums.

In this article we will analyze in detail all the ways to obtain information about the firmware of your device. We will consider not only the standard paths through the settings menu, but also more advanced methods, such as using the engineering menu or ADB commands. This will allow you to get comprehensive data about which particular assembly is installed on your Xiaomi Redmi 9 currently.

You should not ignore this data, as they are the key to understanding the capabilities of your phone. For example, some security features or new navigation gestures are only available at certain levels security patches. Let's move on to practical steps that will help you quickly find the information you need without having to download third-party software.

Standard method through the settings menu

The most obvious and accessible method of checking the software version is located directly in the system interface. Manufacturers of smartphones based Android place this information in the section dedicated to general information about the device. For owners Xiaomi the path may be slightly different from the stock one Android due to the presence of a proprietary shell MIUI.

You need to unlock the screen and find the application icon Settingswhich usually looks like a gear. After entering the menu, scroll down the list to the very end. There you will find the item About phone. Clicking on this section will open a summary table with basic information about your gadget, including the processor model, the amount of RAM and, most importantly, the system version.

Inside the section About the phone pay attention to line MIUI version. This is where the information you are looking for is often hidden. However, additional action may be required to see the clean version Android. In some firmware versions, the version number Android is displayed immediately below the version MIUI, and in others it must be called up separately.

⚠️ Attention: The menu interface may differ slightly depending on the regional firmware version (Global, China, EEA), but the logic of the location of the items remains unchanged.

If you do not see the line with the version Android immediately, try clicking on the logo MIUI or on the line with the version number itself several times in a row. This action often activates the hidden display of additional technical data, including the build number and the base version of the operating system.

Deciphering the version and build number

Once you receive the set numbers and letters, many users are at a loss as to what they mean. The version number Xiaomi is not just a random set of characters, but a strictly structured code that carries important information about the release date, region and type of update. Understanding this structure will help you determine whether your firmware is up to date.

The standard version format MIUI looks like this: V[MIUI Version].[Android Version].[Build Number].[Region]. Let's look at each element in more detail so that you can independently analyze updates in the future. Knowing these details allows you to distinguish the global stable version from the Chinese or development version.

• 🔢 The first digit (V12, V13, etc.) —indicates the major version of the shell MIUI. The higher the number, the newer the interface and functionality.
• 🤖 The second digit - often corresponds to the major version Android (for example, 10 for Android 10, 11 for Android 11), although in new versions MIUI 13/14 this binding has become less direct.
• 🌍 Region letter code —the last letters before the expansion indicate the firmware region: MI (Global/India), EU (Europe), CN (China), RU (Russia).

Particular attention should be paid to the date of the security patch. It is usually indicated in a separate line in the same menu About the phone. This date shows how secure your device is against known vulnerabilities. If the date is older than six months, it is recommended to check for updates.

Sometimes users are faced with a situation where the version number does not match what is expected after an over-the-air update. This may be due to the company's gradual rollout of updates. In this case, you should check the official forum to make sure that your specific model Xiaomi. In this case, it's worth checking the official forum to make sure that your specific model Redmi 9 has already received a new build.

Using the engineering menu for diagnostics

For deeper technical diagnostics there is a special section called the engineering menu. This tool is intended for service engineers, but is also available to ordinary users through a special code. Here you can find more detailed information about the radio module, sensors and version of the system kernel.

To get to this menu, open the application Phone (dialer) and enter a special USSD code. For devices Xiaomi the code ##6484## or ##4636##most often works. After entering the last digit, the menu should open automatically, without the need to press the call button.

##4636##

In the list that opens, select the item Phone information (Phone information). Here you will see extended data about the network, battery status and, importantly, the version of the basic software. Pay attention to the field Baseband version and Kernel version, they can give a hint about the depth of the system modification.

⚠️ Attention: Be extremely careful in the engineering menu. Changing settings in sections Radio Information or Usage Statistics without understanding the consequences can lead to loss of communication or incorrect operation of the sensors.

The engineering menu is especially useful if the standard settings menu shows incorrect data or freezes. This is an alternative source of truth that accesses directly the system partitions storing information about the firmware.

Checking via computer and ADB

If the phone screen is broken or the sensor is not working correctly, you can find out the system version by connecting to a computer. To do this, use the toolkit Android Debug Bridge (ADB). This method requires preliminary preparation, but provides the most accurate data available only at the command line level.

You must first activate developer mode on your Redmi 9. Go to Settings → About phone and quickly click 7 times on the item MIUI version. After the “You have become a developer” notification appears, return to the main settings menu, find the section Additional → For developers and turn on the switch USB debugging.

Connect the smartphone to the computer via a USB cable. You will be prompted to allow debugging on your phone screen - be sure to click Allow. Then on your computer, open a command prompt in the ADB installation folder and enter the following command to get the Android version:

adb shell getprop ro.build.version.release

This command will only display the version number Android (for example, 10 or 11). If you need complete assembly information, use the command adb shell getprop ro.build.display.id. The result will be displayed on the computer console instantly, which is convenient for scripts or automated diagnostics.

This method is indispensable for mass testing of devices or when the graphical interface of the phone is completely inaccessible. It also allows you to check whether the system information has been replaced by malware, since the request goes directly to the system properties.

Third-party applications for determining characteristics

When the built-in tools are not enough or you need to find out detailed information about the hardware in conjunction with the software, specialized utilities from the store come to the rescue. Google Play. These applications scan the system and produce a detailed report in an easy-to-read form.

One ​​of the most reliable tools is the application CPU-Z or AIDA64. After installation and launch, go to the System or OStab. Here you will see not only the version Android, but also the Linux kernel number, the system uptime since the last time it was turned on and the root status.

Application	Size	Main function	Availability of advertising
CPU-Z	~5 MB	Information about the processor and OS	Minimum
AIDA64	~10 MB	Full diagnostics	Absent
Device Info HW	~3 MB	Parts of cameras and sensors	Yes
DevCheck	~8 MB	Monitoring in real time	Depends on the version

Using third-party software has one important advantage: these applications often show real, not marketing information. For example, they can accurately determine whether the system has been flashed with a custom recovery, which is hidden in the standard settings menu.

⚠️ Attention: Download diagnostic applications only from the official store Google Play. Third-party APK files may contain viruses masquerading as useful utilities.

Remember that installing unnecessary applications uses up battery power and takes up memory space. After receiving the necessary information about the version Android on your Redmi 9, such utilities can be safely removed.

What to do if the version is not being updated

It often happens that you checked the version and found that it is out of date, but the system does not offer an update. This is a common situation for devices Xiaomi, especially those that have already been removed from active support or belong to the budget segment.

First of all, make sure that you have enough free memory space. Updates require space to download and unpack files. Also check the stability of your Internet connection - large update packages may not be downloaded via the mobile data.

Sometimes the problem lies in the firmware region. If you bought a phone imported from China, but try to update it on global servers, the update will not arrive. In this case, you need to manually download the latest firmware from the official website and install it through recovery mode.

If the automatic update does not work, you can try a forced scan. Go to Settings → About the phone and click on the logo MIUI. The system will contact the server and check for the presence of new packages specifically for your device ID.

Risks of manual flashing

Manual installation of the firmware (via Recovery) erases all data from the phone if you do not select the save option. Be sure to make a backup copy of your contacts and photos before starting the procedure, otherwise it will be impossible to restore them.

Frequently asked questions (FAQ)

Is it possible to roll back the Android version on Xiaomi Redmi 9?

Officially the company Xiaomi does not support downgrade (rollback) Android version through the regular update menu. An attempt to install old firmware over new one is often blocked by the security system Anti-Rollback. In some cases, this can lead to your phone being turned into a brick. Rolling back requires complex manipulations with unlocking the bootloader and using Fastboot, which is not recommended for ordinary users.

Does the Android version affect the speed of Redmi 9?

Yes, it does, but it is ambiguous. New versions Android bring memory optimizations and improved power management, which can speed up performance. However, newer shells MIUI often become heavier, which on a budget processor Helio G80 can, on the contrary, cause slight slowdowns. The balance between new features and performance is individual for each model.

Why does the menu indicate one version of Android, but applications write another?

This can happen if the application developer incorrectly reads data from the system or if modified system files are installed on the phone (for example, after obtaining root access). Also, some applications may erroneously determine the version based on the API layer rather than the actual kernel version. In 99% of cases, you should trust the information in the section About phone.

How to find the date of the last security update?

This information is in the same section About the phone, immediately below the version MIUI. This is referred to as the "Security patch level". If this date has not been updated for more than a year, the device may be vulnerable to new types of malware, although for basic tasks this is often not critical.

Will the Redmi 9 receive updates to Android 12 or 13?

Update Policy Xiaomi for budget devices it is usually limited to 1-2 major Android updates. Redmi 9 it came out with Android 10. Officially, it received an update to Android 11. The likelihood of receiving official firmware based on Android 12 is extremely low, although enthusiasts can release custom firmware. Always check the official support list on the manufacturer's website.