Owners of budget smartphones often wonder how to extend the life of their device using fresh software. Xiaomi Redmi 9A, released in 2020, was originally supplied with a shell MIUI 11 or 12 based on Android 10, but support has been expanded over time. The opportunity to get new security features and interface optimization remains relevant even for inexpensive models, although the process may have its own characteristics.
Before starting any manipulations with the system partition, it is critical to understand the current state of your gadget. Not all firmware versions are available for all regions at the same time, and sometimes it can take weeks to wait for an update. In this article, we will analyze all the legal methods of switching to a new version MIUIexcluding risky methods that can turn the phone into a “brick.”
It is worth noting right away that the hardware Redmi 9A has its own resource limitations. The processor MediaTek Helio G25 and 2 or 3 GB of RAM dictate certain limits for heavy versions of Android. Therefore, the update should be carried out carefully so as not to lose performance for the sake of a couple of new icons in the menu.
Checking the current version and available updates
The first step is always to diagnose the current state of the system. You need to go to the device settings and find the section responsible for information about the phone. This is where the system reports which version Android and shell MIUI is currently installed.
Click on the item with the version number to initiate a search for updates through the manufacturer’s servers. If new firmware is found, the system will offer to download and install it. However, it often happens that the “Check for updates” button does not show anything new, although the version has already been released in other markets.
Pay attention to the build number. It usually looks like a series of numbers and letters, for example, V12.5.3.0.QCGRUXM. The last letters indicate the region: RU for Russia, EU for Europe, IN for India. This is an important parameter, since firmware from different regions may be incompatible when installed manually.
⚠️ Attention: If your phone was purchased second-hand or brought from another country, the firmware region may not match the region of sale. Installing the global version over the Chinese version may result in the bootloader being blocked.
Before checking for updates, make sure you are connected to a stable Wi-Fi network, as update packages can weigh more than 2 GB and quickly drain your mobile data.
Sometimes the system offers an update, but the download is interrupted in the middle. In this case, you should clear the cache of the Software Update application through the app settings and try again. This is a simple but effective method for solving minor software glitches.
Preparing the device for the update procedure
The success of the operation depends 90% on preliminary preparation. Ignoring this step is the most common cause of failure and data loss. You need to free up space, charge the battery, and save important information.
Back up all your contacts, photos, and documents. Even with a regular update, there is a minimal risk of failure, which will require a complete reset. Use cloud services Google Drive or the built-in .mi Cloud function for backup.
- 🔋 Charge the battery to at least 60%, and preferably up to 100%, so that the phone does not turn off at the critical moment of recording system files.
- 💾 Free up at least 5-7 GB of internal memory, by deleting unnecessary videos or transferring them to a microSD card.
- 📶 Make sure your Internet connection is stable by avoiding public Wi-Fi networks with limited bandwidth.
Disable all unnecessary applications and widgets before starting the process. The fewer background tasks running at the time of reboot and installation, the cleaner the procedure for writing data to flash memory will be.
☑️ Ready for update
It is also recommended to disable the screen lock (pattern or pin code) for the duration of installation, although modern versions MIUI usually request unlocking before starting. This will prevent situations where the system freezes on the password entry screen during boot.
Method 1: Automatic update over the air (OTA)
The simplest and safest method for the average user is to use the built-in mechanism OTA (Over-The-Air). This method guarantees that you will receive exactly the version that the manufacturer has tested for your region and hardware configuration.
The process is fully automated: the phone itself will download the archive, check its integrity and offer a reboot. All you have to do is confirm the action. After a reboot, the device may work slower than usual for 15-30 minutes while the system optimizes applications for the new version. Android.
If the update does not arrive for a long time, you can try changing the region in the settings. Go to Settings → Advanced settings → Region and select another country, such as India or Indonesia. Often updates are released there earlier than in Europe or Russia.
⚠️ Attention: Changing the region may temporarily change the set of pre-installed applications and advertising offers in system utilities. Return your region back after a successful update.
After receiving the new version, do not rush to change the region back immediately. Let the system install completely, check the operation of the main functions, and only then return the region settings to the original ones, if this is necessary for the correct operation of local services.
Method 2: Manual installation via Recovery
If the automatic method did not work or you need a specific firmware version, you can use the manual mode. To do this, you will need to download the firmware file with the extension .zip from the official website or trusted resource.
Copy the downloaded file to the root folder of the phone’s internal memory. Do not put it in any subfolders, the system should see it immediately. Then go to the update menu and click on the three dots in the upper right corner of the screen.
In the menu that opens, select “Select firmware file.” The system will find the archive and prompt you to start the installation. This method often helps when an OTA update is stuck or shows a download error.
| Parameter | OTA Update | Manual installation (Recovery) |
|---|---|---|
| Difficulty | Low | Medium |
| Risk of data loss | Minimum | Medium (depending on version) |
| Network requirements | High (for downloading) | Low (only for downloading a file) |
| Rollback option | No | Only to an older version |
The screen can turn off, the phone may vibrate - this is normal behavior. The main thing is not to press the power buttons until the logo appears MIUI.
What to do if the installation is interrupted?
If the process is stuck on the logo for more than 10 minutes, try performing a forced reboot by holding the power button for 10-15 seconds. If the phone does not turn on, you will need Fastboot mode and a PC.
Features of the transition between versions of Android
The transition from Android 10 to Android 11 or higher on a device like Redmi 9A is not just changing numbers. This is a change in the structure of system files and access rights. Sometimes, after such a major update, some old applications may no longer work correctly.
Users often notice that after a major upgrade, the phone begins to discharge faster. This is due to the fact that the system needs time to re-index files and adapt energy-saving algorithms to the new kernel code. This usually goes away on its own after a couple of days of active use.
In some cases, the update blocks the ability to obtain root access if they were previously installed. If you used modified software, returning to stock firmware via an official update will overwrite all changes and unlocking the bootloader.
Critical important: On Redmi 9A with a MediaTek processor, unlocking the bootloader using the official method is often impossible or extremely difficult, so experiments with custom firmware are not recommended.Major Android updates (for example, from 10 to 11) require more time for the first boot and can temporarily reduce the autonomy of the device.
Problem solving and common errors
Even if all instructions are followed, errors may occur. The most common one is the message “Failed to check for update” or an endless download. Most often, the problem lies in corrupted cache files or lack of space.
Try clearing the Software Update application data. To do this, go to Settings → Applications → All applications → Software update and click “Clear”. After that, check for updates again.
If the phone went into a cyclic reboot (bootloop), you will need to enter Recovery mode. To do this, turn off the phone and simultaneously press the Volume Up and Powerbuttons. In the menu, select Wipe Data, but remember that this will delete all files from the device.
- 🔄 Error 404 on boot: check the date and time on the device, incorrect settings will cause problems SSL server certificates.
- 📉 The phone slows down after the update: clear the cache via Recovery without deleting user data.
- 🚫 Not enough space: delete the folder
downloaded_romin the root of the internal memory, there may be old unsuccessful downloads there.
In rare cases, the problem may be related to Xiaomi servers. If everyone around you doesn't have the update, it might just not have arrived on your device in a wave yet. In this case, all you have to do is wait.
⚠️ Attention: The Recovery menu interface may differ depending on the MIUI version. Be careful when selecting items so as not to accidentally erase data (Wipe All Data).
If after the update there is no sound or the microphone does not work, try resetting the sound settings in the engineering menu or performing a full reset of the phone.
Questions and answers (FAQ)
Is it possible to update Redmi 9A to Android 13 or 14 officially?
Official support Redmi 9A limited to version Android 11 (MIUI 12.5 or MIUI 13 depending on the region). Newer versions of Android have not been officially released for this model due to hardware limitations.
Will the update delete my photos and contacts?
When updating via OTA or manually installing the Recovery file without selecting Wipe Data, all your personal files, contacts and applications are saved. However, creating a backup copy before the procedure is always necessary.
Why did the phone begin to work slower after the update?
In the first days after installing a new version of the system, background optimization of applications and indexing of media files occurs. This loads the processor. Typically, performance is restored in 2-3 days.
Is it safe to change the region to receive the update?
Yes, this is a safe procedure that does not entail data loss. However, it may affect the operation of some local services and the frequency of advertising in system applications.
What to do if the “Update” button is inactive?
This means that the server does not see available updates for your device. Try changing the region, clearing the update application cache, or waiting a few days until the next wave of distribution.