Modern Xiaomi smartphones regularly receive updates designed to improve security and add new features. However, practice shows that the new version of the operating system does not always work consistently on a particular device. Users often face a rapid battery discharge, overheating or disappearance of the usual interface after an update.
In such situations, the only sensible solution is to go back to the previous, proven version of the shell. A process known as downgrade requires carefulness and precise adherence to the algorithm of actions. Wrong actions can lead to data loss or program errors, so it is important to study the theoretical part in advance.
There are several methods of system rollback: standard through the update menu, using Recovery mode or full flashing through the computer. The choice of the specific method depends on your current version of Android, the availability of an unlocked bootloader and the type of firmware you install (Global or China).
The main reasons for the system rollback
The decision to downgrade is rarely made spontaneously, usually driven by critical problems in the gadget that interfere with everyday use, and understanding the reason helps you choose the right recovery method.
Users often complain that after installing new software, battery consumption increases by one and a half to two times, this may be due to unoptimized code or background processes of a new build, and there may be failures in communication modules when Wi-Fi or Bluetooth start to work unstable.
Another reason is the change in interface logic, where developers can remove useful features or move important settings, which is uncomfortable for users who are used to the old circuit, and in such cases, going back is the only solution.
- 📉 Critical fall in autonomy and rapid heating of the body for simple tasks
- 📡 Frequent connection breaks or drop in mobile internet speed
- 🔋 Errors in the operation of proximity or illumination sensors after the update
It is worth noting that some problems may be caused not by the firmware itself, but by an application cache conflict. However, if cleaning the cache does not help, then rolling back the system is the only effective way to bring the device back to life without losing the warranty at the software level.
📊 Have you encountered any bugs after the update? MIUI?
Yeah, battery goes down in half a day.
Yes, important functions are missing.
No, it worked great.
I'm not updating the system.
Preparation of the device and necessary files
Before any manipulation of system files begins, careful preparation is required, which minimizes the risk of loss of important information and ensures continuity of the process, and ignoring the preparatory stage often leads to errors in the installation stage.
First of all, you need to create a full backup of your data. Even if you plan to just replace the firmware file, the likelihood of having to completely reset your settings (Wipe Data) is extremely high, save contacts, photos and documents to the cloud or to your computer.
The second important step is to find the right firmware file. You'll need an archive with the.zip extension for the method via Recovery or.tgz for the method through Fastboot. It's important that the version you're rolling back on is newer than the bootloader version, but older than the current installed system if you're using the method without unlocking.
Also make sure that there is free space on the smartphone disk, temporary installation files can take several gigabytes, and if there is not enough memory, the system will simply prevent the upgrade or rollback process from starting.
The easiest and safest way to return an old version of MIUI is to use a computer, which works if you move from a newer version to an older one, but within the same branch (e.g. global to global), but there is an important caveat: the standard menu usually does not allow you to install the old version on top of the new one.
To get around this limitation, you need to activate the hidden update developer menu. To do this, open the firmware file in the file selection menu (where you select the archive) several times in a row. Usually you need 7-10 quick clicks on the icon of the selected file.
Once activated successfully, a pop-up window will show you a suggestion to switch to manual selection mode, and if the system offers to upgrade, you can agree. If you hear a message that the version is older than the current one, this method will not work, and you will have to use Recovery.
Why does the system block the installation of the old version?
Xiaomi is implementing anti-Rollback protection, which prevents the installation of vulnerable versions of software that have already been patched in new security updates, protects users from known exploits, but makes life difficult for those who want to return old functionality.> It is important to understand that this method only works if the version of the bootloader on the old firmware is the same or newer than the current one. Otherwise, the installation will be interrupted during the verification phase. Downgrade via Recovery Mode If the standard menu blocks the installation, Recovery Mode comes to the rescue. It's a special environment for smartphone maintenance that has access to system partitions. To enter this mode, you need to turn off your smartphone and pinch the button combination Volume Up. + Food: Once in the Recovery menu, select the language (usually available in English and Chinese). Then go to Connect with MIAssistant if you’re using a PC, or immediately select Install Update if the firmware file already lies at the root of internal memory or on the back of the computer. SD-Find the downloaded.zip archive and confirm the installation. The system will warn you that all data will be deleted. This is an inevitable process in a downgrade, because the file structures of different versions of Android or Android are not available. MIUI may not match. ⚠️ Note: If after selecting a firmware file, a red screen appears with the text "Can't verify update" or "Current version is older than the one you are trying to flash", then Anti-Rollback protection or region incompatibility has worked. The installation process can take anywhere from 5 to 15 minutes, during which time the smartphone can restart several times. Do not try to interrupt the process or remove the battery if it is not removable. The most radical, but also the most effective method is to use the MiFlash utility on your computer. This method requires an unlocked bootloader. If your bootloader is locked, this method will not work and the device will go into an endless reboot. First, download and install the Qualcomm or MediaTek drivers (depending on your smartphone’s processor) and the MiFlash program itself. Download the firmware in.tgz format and unpack the archive to the root of the C disk so that the path is short, for example: C:\xiaomi_rom\. Transfer the smartphone to Fastboot mode by clamping the buttons Volume Down + Power. Connect the device to the PC with a cable. In MiFlash, press the Refresh button to let the computer see the phone. In the list of ways, select the folder with the unpacked firmware. Firmware mode Save data Complexity Update Requirements Keeps Low No Clean All Removes Average Unblocked BL Clean All + Lock Removes High Original Firmware At the bottom of the MiFlash window, select Clean All mode. This will completely clear the memory and install the clean system. Pressing the Flash button will start the process. Once completed, the smartphone will automatically restart. In the downgrade process, users often face technical difficulties, and one of the most common errors is Error 4 in MiFlash, which means that the path to the firmware files is too long or contains Cyrillic characters. Move the folder to the root of the disk and rename it to rom. Another problem is hanging on the logo. MI (Bootloop). If the old version is not loaded again 10 Try to log in to Recovery and make Wipe. Data/Factory If that doesn't work, maybe the bootloader version on the old firmware is too low for the current one (hardware) and you'll have to look for an intermediate version. There's also a Not enough space error. It occurs when the internal memory is full of garbage. 5-6 GB space. ⚠️ Warning: Never try to flash firmware from another model, even if they look very similar. 9 It is not suitable for Redmi Note. 9 Pro. This is guaranteed to lead to "bricking" of the device. If nothing helps and the phone has stopped responding to buttons, you may need to use deep recovery tools such as the one you need to use. EDL Mode, but it already requires contacting the service center or having an authorized Mi Account. 💡Successful downgrades are possible only if the firmware region (Global for Global) is strictly adhered to and the rules of the bootloader version are followed (FAQ) Can I roll back? MIUI Unfortunately, when you move to an older version of the system, you have to clean the data partition (Wipe Data) to prevent database conflicts. Save everything important before you start. What is Anti-Rollback and how to get around it? Anti-Rollback (ARB) — This is a protection that prohibits the installation of a version of software with a lower security index than the current one. The only way to get around it is to look for a firmware version with the same or higher ARB index, but an older release date. Will the warranty fly off after the system rolls back? If you use the official method through the update menu or Recovery with original files from the mi.com site, the warranty is preserved. However, unlocking the bootloader (necessary for some methods) officially voids warranty obligations in some regions. Where to download secure old firmware? The only safe source is the official website miui.com or proven aggregators like XiaomiFirmware can prevent the downloading of the virus from infecting the forum.