Frequently updating software on Xiaomi smartphones running interfaces MIUI or new HyperOSoften becomes a source of unforeseen problems. Users experience increased battery consumption, unstable operation touch screen, processor overheating, or the disappearance of familiar functions after installing a new version. Android. In such situations, the only effective solution is to roll back the system to a previous, more stable build.
The procedure for returning old firmware is not a standard function of the settings menu and requires certain technical training from the user. Incorrect actions can lead to complete failure of the device, known as brick. However, if you follow a clear algorithm and have the necessary files, it is quite possible to restore the functionality of the gadget, returning it to the state in which it functioned without failures.
Before you begin to manipulate the system partition, you need to critically evaluate the feasibility of a downgrade. Sometimes problems are not caused by the firmware itself, but by a conflict of installed applications or errors during data transfer. If you are sure that the reason lies precisely in the update Xiaomi, then the next step should be to carefully prepare the device and select the appropriate recovery method.
Preparing the device and choosing a rollback method
The success of the operation to return the previous version firmware 90% depends on the quality of preparation. The first and most important step is to create a complete backup of all user data. The flashing process, especially using a computer, involves completely formatting the internal memory, which will lead to irretrievable loss of photos, contacts and messages if you do not make a backup in advance.
The second critical step is unlocking the bootloader Bootloader. Official tools Xiaomisuch as Mi Flash Toolonly work with an unlocked device. The unlocking procedure requires submitting an application through the manufacturer’s official website and waiting from 3 to 7 days. Ignoring this requirement will make it impossible to use most effective rollback methods.
⚠️ Attention: Unlocking the bootloader will automatically void the device warranty in most service centers. In addition, this procedure completely erases all data from the phone, so save everything important in the cloud storage or on a PC.
There are two main ways to solve the problem: using a third-party Recovery (for example TWRP) to install the firmware archive directly on the phone or using official software Mi Flash on computer. The choice depends on your skills and the current state of the device. For beginners, the method with a computer is preferable, as it provides more visual control over the process.
☑️ Ready to rollback the firmware
Search and download the required firmware version
The key point in the downgrade process is to find the correct system image file. You can't just download any old version; it must be compatible with your device region (Global, China, EEA, Russia) and processor type. Installing firmware from another region can lead to problems with the operation of communication modules and banking applications.
Firmware files for Xiaomi are distributed in two main formats: Recovery (.zip) and Fastboot (.tgz). To rollback via a computer, you will need the Fastboot version, which contains a complete image of all memory partitions. Such archives are usually larger (3-5 GB) and require unpacking before use in the firmware utility.
Download sources must be verified. The official repository XiaomiFirmwareUpdater or specialized forums like 4PDA i XDA Developers are the most reliable options. When downloading, be sure to check the checksum of the file to ensure the integrity of the download and the absence of damage to the archive.
| Firmware type | File extension | Installation method | Erasing data |
|---|---|---|---|
| Recovery ROM | .zip | Via the update menu / TWRP | Optional |
| Fastboot ROM | .tgz | Via Mi Flash Tool (PC) | Required |
| OTA Update | .zip (partial) | By air | No |
| Card Flash | .zip | From a memory card | Depends on the version |
How to distinguish Recovery from Fastboot firmware?
Recovery firmware has a .zip extension and usually weighs about 3-4 GB. Fastboot firmware has a .tgz extension, weighs 4-6 GB and inside the archive contains many files with the .img extension and the flash_all.bat script. To roll back the system to an older version, it is strongly recommended to use a Fastboot image.]
Rollback method through Fastboot mode and Mi Flash Tool
This method is considered the “gold standard” for returning to the old version Android on devices Xiaomi. It requires a computer running Windows and the driver installed ADB/Fastboot. The utility Mi Flash Tool allows you to forcibly write the old system image, ignoring the version checks installed in the standard bootloader.
First, you need to put the smartphone in Fastbootmode. This is usually done by turning off the phone and then pressing the volume down button and the power button at the same time until an image appears with a hare repairing the android. After connecting the cable to the PC, the device should be detected in the device manager.
Run Mi Flash Tool as administrator and specify the path to the unpacked folder with the old firmware. At the bottom of the app window, it is critical to select the mode clean all. This option ensures that memory is completely cleared before writing new data, which eliminates file system conflicts between the old and new versions. Warning: Never select mode when downgrading to an older version of Android. Locking the bootloader on old firmware may cause the phone to stop booting due to checking security versions (Anti-Rollback). MIUI.
⚠️ Attention: Never select the mode
clean all and lockwhen downgrading to an older version of Android. Locking the bootloader on old firmware may cause the phone to stop booting due to security version checking (Anti-Rollback).
After pressing the button Flash the recording process will begin, which takes from 100 to 300 seconds. The progress bar will display the status of the operation. During this time, it is strictly forbidden to disconnect the cable or interrupt the power supply to the computer. Once the procedure is complete, the phone will automatically reboot, and the first startup may take up to 10 minutes.
Manual installation via Recovery Mode
If you are unable to use a computer, you can try to perform a rollback directly on the device using the standard recovery menu. This method only works if the difference in firmware versions is small and the protection mechanism does not work. You will need a firmware file of format Anti-Rollback. You will need a firmware file format .zip, saved in the internal memory of the phone.
Go to the menu Settings → About phone → MIUI version and click on the three dots in the corner of the screen. Select Select firmware file and specify the path to the downloaded archive. The system will check the file and prompt you to reboot for installation. If the version is older than the current one, the system may generate an error and prohibit installation.
If blocked using the standard method, you will need access to the extended Recovery menu. To do this, turn off the phone and hold down the power and volume up buttons. In the menu that appears, select a language (usually only English and Chinese are available) and go to Install or Apply Update. Find the firmware file and confirm installation.
It is worth noting that this method is less reliable in case of serious version rollbacks. Security mechanisms Xiaomi often block the installation of older images through the stock bootloader to prevent security vulnerabilities. If you encounter an error Can't verify update, the only way out is to use the Fastboot method with an unlocked bootloader.
Compatibility issues and Anti-Rollback protection
One of the main obstacles to the old firmware is technology Anti-Rollback (ARB). This is a protection mechanism implemented by developers to prevent rollbacks to vulnerable versions of software. Each firmware has an ARB index, and if the index of the installed version is lower than the index of the current one, the firmware process will be interrupted, and in the worst case, the device may get software locked.
You can check the protection index using special utilities on your PC by connecting your phone in Fastboot mode. The command fastboot getvar anti will display the current value. If you try to install firmware with a lower index, the system will refuse the operation. It is impossible to bypass this limitation using software methods without the risk of “bricking”.
Regional characteristics should also be taken into account. Firmware for the Chinese market (China ROM) often have newer versions Android previously global, but their installation on the global version of the device (Global ROM) requires re-partitioning of partitions and can lead to a function failure Google Pay or the operation of banking applications due to a mismatch of signature keys.
⚠️ Attention: Before firmware, be sure to check the Anti-Rollback index of the current system and the file you plan to install. Installing a version with a lower ARB index may permanently block the device's bootloader.
Recovering from a failed attempt and common errors
Even if you follow all the instructions, the process may not go according to plan. A common mistake is to interrupt the USB connection while recording sections. In this case, the phone may freeze at the logo Mi or enter an endless reboot (bootloop). Don't panic: in most cases, the device remains in Fastboot mode and is ready for re-flashing.
If the phone does not respond to button presses and the screen is black, it may have gone into EDL (Emergency Download Mode). To exit this state or to update the firmware, an authorized service engineer account is often required Xiaomi, which makes independent repairs difficult. However, sometimes holding the power button for a long time (more than 30 seconds) helps.
Another common problem is an error Error: Anti-rollback check failed in the app Mi Flash. This is a direct signal that the selected firmware is too old for the current state of the bootloader. The only solution in this situation is to look for a more recent version of the firmware, which is still stable for you, but has a suitable protection index.
After a successful rollback and first power-on, it is recommended to perform a full reset (Wipe Data) again through the Recovery menu to eliminate cache remnants from the new version that may cause crashes. This will ensure a clean installation of the old system and maximum performance.
Is it possible to return an old version of Android without unlocking the bootloader?
Officially - no. The standard update menu does not allow you to install versions older than the current one. Third-party methods without unlocking are extremely risky and often lead to signature verification errors. Unlocking Bootloader is a prerequisite for using the Mi Flash Tool utility.
Will rolling back the firmware erase all my photos and contacts?
Yes, in 99% of cases, when using the Fastboot (Mi Flash) method with the "clean all" mode, all internal memory will be completely formatted. Be sure to back up your data to your computer or to the cloud before starting the procedure.
What to do if the phone is stuck on the logo after a rollback?
Try going into Recovery mode (Volume Up + Power) and select "Wipe Data / Factory Reset". If this does not help, the firmware was probably damaged or incompatible, and the procedure must be repeated with another image file.
Is it safe to install Chinese firmware on the global version of Xiaomi?
This is not recommended for ordinary users. Chinese firmware does not have pre-installed Google services (they need to be installed manually), may not work correctly with Russian communication frequencies and often contain Chinese in system applications, which cannot be removed.
How can I find out the exact model of my Xiaomi to search for firmware?
Go to the phone settings, section "About phone". You need the model code, for example "M2101K7AG". This information can also be seen on the device box or in Fastboot mode on the phone screen. Using this code, the appropriate firmware is searched.