How to roll back firmware on Xiaomi smartphone: the full guide

When a smartphone starts to run unstable after a MIUI or HyperOS update, many users are familiar with the situation: the battery runs out in a few hours, the interface slows down, and the usual applications fly out with errors, in which case the only reasonable way out is to return to the previous, more stable version of the software.

The rollback process, or downgrade, requires careful and clear follow-up to instructions, as interference with system files always carries certain risks. Wrong actions can lead to data loss or “bricking” of the device, so before starting any manipulations, you need to weigh the pros and cons. In this article, we will discuss in detail the safe methods for returning old firmware on Xiaomi, Redmi and POCO devices.

It should be noted that Xiaomi’s security policy has been tightened considerably in the latest shells. The system now often prohibits installing an older version of software on top of the new standard methods. Starting with MIUI 12.5 and higher, a firmware rollback usually requires a complete data cleanup (Wipe All Data) or the use of special tools like the Mi Flash Tool. Ignoring this requirement will lead to a “Can’t update” error or an endless reboot cycle.

Preparation of the device and necessary files

The first step is to find and download the correct firmware file. You will need to find the exact version you want to return to, and it must be complete (Recovery) ROM), Search files on official resources or verified archives, such as Xiaomi Firmware Updater, paying attention to the region of the device (Global, China, EEA, Russia).

Once you download the.zip file, you need to rename it to update.zip. This is a standard requirement for installation through Restore Mode. The file should be placed at the root of your smartphone's internal memory. If you plan to use your computer, make sure it has ADB drivers and Mi Flash Tool, and the USB cable is functional and capable of transmitting data, not just charging the device.

Make sure to back up all your important data, as the rollback process is almost guaranteed to completely delete information from your phone.Photos, contacts and documents are best saved in Google Drive cloud storage or on your computer.Also make sure that the battery is at least 60% so that the device does not turn off at a critical moment of flashing.

Recovery Menu Recovery Method (without PC)

This is the easiest way to do this, and it doesn't require a computer, but it doesn't work on all versions of the shells. If the system blocks the installation of the older version, you'll see an error message, and you'll have to move on to more sophisticated methods. First, put the update.zip file in the root of your Xiaomi smartphone's internal memory.

Then you need to switch to Recovery mode. To do this, turn off the device completely, and then press the volume button and the power button at the same time. Hold them until the Mi logo appears, then release the power button, continuing to hold the volume. In the menu that appears, select the language (usually English or Chinese) and click on Install update.zip or Set update.zip.

If the firmware version in the archive is older than the current one, but the anti-rollback is not active or allows this to happen, the installation process will begin. If you see the message "Can't verify update" or "Current version is newer", then the standard path is closed, in which case you will need to use the computer and Fastboot mode.

Using the Mi Flash Tool to completely roll back

The most reliable way to get around most software limitations is to use the official Mi Flash Tool utility on your computer. ROM (files with the.tgz extension, which must be unpacked into the root of the C disk so that the path does not contain Cyrillic and is short, for example, C:\mi_rom\.

Put your smartphone into Fastboot mode by slamming the volume button and connecting a USB cable to your computer. Android Bootloader Interface should appear in Windows Device Manager. Launch the Mi Flash Tool on behalf of the administrator, press the Refresh button and make sure your device is determined. At the bottom of the window, select the "Clean all" option, which means completely clean up the data and install a clean system.

Press the Flash button and wait until the process is complete. The green progress bar and the success status will mean a successful rollback. It is important not to turn off the cable or interrupt the process, even if the smartphone screen goes out or changes the color of the indicator. Once completed, the device will automatically restart with a new, older version of the system.

⚠️ Note: When using the Clean All method through the Mi Flash Tool, all data on the phone will be permanently deleted.

Recoil with ADB teams

For advanced users who do not want to use the Mi Flash GUI, the command line method and ADB are available. This method also requires a Fastboot ROM and a Fastboot smartphone. You will need a folder with Platform Tools installed.

Open the command line in the folder with ADB And you can type in a command to check the connection: fastboot devices. If you've got a device, you can start the partition firmware process. However, manually stitching through each partition is risky and long. flash_all, But it requires that the firmware script be adapted or used by a standard bat file from the Fastboot archive. ROM.

In the archive with Fastboot firmware usually has a file flash_all.bat (Run it by making sure the phone is connected in Fastboot mode, and the script will execute the necessary commands to clean the memory and write the new system, similar to the "Clean all" action in the Mi Flash Tool, but executed via the console.

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If the command line closes immediately after the script is launched, try running the file. flash_all.bat right-click, selecting “Send” or running on behalf of the administrator, or manually write the path to adb.

Possible mistakes and ways to solve them

Users often encounter errors during downgrades, such as Status 7 or Error in updater script, which occurs when the installation script detects a discrepancy between the bootloader version or region, and the solution is either to use full firmware in the same region as it is now, or to unlock the bootloader.

Another common problem is hanging on the Mi or Android logo after installation, which can mean a conflict between the old and the new system, in which case you need to log back in to Recovery and run Wipe Data → Wipe All Data, and only after you have cleaned and re-installed it (or run it for the first time after cleaning it) should work properly.

There is also a possible “Anti-rollback check failed” error, which is a critical error, meaning that the rollback protection version in the current system is higher than the firmware you are trying to install, in which case you cannot continue installing, and an attempt to force can lead to irreversible consequences for the device.

Questions and Answers (FAQ)

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The safest and most guaranteed way to roll back is to use Fastboot ROM and Mi Flash Tool utility with the option of complete data cleanup.