Modern Xiaomi and Redmi smartphones regularly receive operating system updates designed to improve security and add new features. However, in practice, owners of popular models of the Redmi Note series often face the opposite situation: after an update, the device begins to run slower, discharge faster or there are critical errors in the operation of the MIUI interface. In such cases, the only reasonable solution is to return to the previous, more stable version of the software.
The rollback process, or downgrade, is technically more complex than a regular update, and requires the user to be more attentive to detail. You will not just press the Update button, but you will have to perform a number of preparatory actions, including unlocking the bootloader and cleaning all the data on the device. Ignoring these steps can lead to the smartphone becoming a “brick” or remaining locked during the boot phase.
In this article, we will take a look at all the ways to return old firmware, explain the difference between the global and Chinese versions, and provide a checklist that will protect your data. Before you start taking action, you need to understand that a complete data reset is a mandatory requirement of the Android security system when you downgrade the software version.
Why is it necessary to roll back the system?
The main reason users are looking for ways to return to the old version of MIUI is the unoptimized new software. Developers often test updates on a limited number of devices, and bugs can only appear on mass models like the Redmi Note 10 or Redmi Note 11 after a global release.
In addition, newer versions of the shells often contain changes in the algorithms of the processor and the power controller, which can lead to unpredictable battery behavior. If your smartphone began to run out in half a day where it used to hold a charge for a day, the problem lies in the software part.
⚠️ Warning: Trying to roll back the system without first unlocking the bootloader will result in an installation error or a cyclical reboot of the device in 99% of cases.
Also worth mentioning is the subjective factor: many users simply do not like the changed design or logic of the menu in new versions of Android. The desire to return the usual interface is a legitimate reason for the downgrade procedure, despite the risks.
Preparation of the device and necessary tools
The first and most critical step is to prepare the workplace and the smartphone itself. You'll need a Windows computer that's working. USB-cable (preferably original) and stable Internet connection, without quality cable, the connection between the PC and the phone can be interrupted at the most inopportune moment.
The main tool for manual firmware is the Mi Flash Tool, which allows you to download system images directly to the device memory, and you may also need ADB and Fastboot drivers, which usually come with the toolkit.
☑️ Preparation for the downgrade
Make sure to make a full backup of all important data. During the rollback process, your smartphone’s internal memory will be completely cleared, including photos, contacts and messages. Use Google’s cloud services or the built-in Mi Cloud sync feature to store information.
Unlocking the bootloader: the key stage
Xiaomi has implemented strict security measures that block the installation of unofficial or older versions of firmware on devices with a locked bootloader.
The unlocking process requires filing an application through the official Mi Unlock Tool app and linking your Mi Account to your device. Once you submit an application, you often have to wait 7 to 168 hours (a week to a month) before the server allows it to be unlocked, which is the time it takes to check the device for theft.
There is an important caveat: when you unlock the bootloader, all data on the phone is automatically deleted for security reasons, so if you haven't already done a backup, you should do this before the unlocking process begins.
What happens if the Mi Unlock server is not responding?
Search and download compatible firmware
The most difficult part of the process is finding the right version of the software. Xiaomi firmware is divided into two main types: Recovery (.zip format) and Fastboot (.tgz format).
It is important to consider the regional identity of your device. If you have a global version, you should also look for firmware with the MIUI Global marking. Installing Chinese firmware (China) on a global device is possible, but it will require additional manipulation with regions and can cause problems with communication frequencies and notifications.
Download archives should only be from trusted sources, such as the official forum Mi Community or authoritative portals like XiaomiFirmware. Using files from questionable file sharing sites carries the risk of infecting the device with malicious code.
When choosing a version, look for a release date. You want a version that was relevant before the update you want to cancel. For example, if problems started after you switched to MIUI 14, look for the latest MIUI 12.5 or 13.
Method 1: Recovery Mode (for certain cases only)
There's a non-computer-based rollback method, but it doesn't always work, and it's applicable if you're trying to roll back to a version that's newer than the minimum version, but older than the current version, and it blocks older versions from being installed through the update menu.
To try this method, download the firmware archive in.zip and rename it to update.zip. Place the file in the root of the smartphone's internal memory. Then go to recovery mode by holding the button combination Volume Up + Power.
In the Recovery menu, select the language and click Install update.zip. If the system gives an error "Can't verify update" or "Current version is newer than the one you are trying to install", then this method will not work and you will have to switch to using Fastboot.
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If you see a message that you can’t install, don’t try to bypass the check by renaming files inside the archive – this will violate the integrity of the signature and can lead to a bootloop.
Method 2: Complete Fastboot and Mi Flash flash flash flash
This is the most reliable and versatile way to ensure that you can roll back the system to any previous version. First, switch your smartphone to Fastboot mode. To do this, turn off the device and press the Volume Down + Power button before the image of a hare repairing an android appears.
Connect your phone to your computer and start the Mi Flash Tool. Press the Refresh button to let the utility detect the device. In the address bar of the program, specify the path to the unpacked firmware folder. Note: the folder should contain script files, not one archive.
At the bottom of the program window, you'll see three options. To get a clean rollback, it's critical to choose Clean all mode. This mode completely erases memory and installs a new (old) version of the system from scratch. Save user data modes will not work when downgrading or will lead to errors.
| Firmware mode | Data retention | Downhraid possibility | Recommended use |
|---|---|---|---|
| Clean all | No (full reset) | Yes (permissible) | Retraction of version, change of region |
| Save user data | Yes. | No (usually blocked) | Re-routing the same version |
| Clean all + lock | No. | Yes (with risk) | Only if the firmware region matches |
After selecting the mode, press the Flash button. The process will take from 300 to 600 seconds. At this time, it is strictly forbidden to turn off the cable or interrupt the power of the computer. Upon completion, the status will change to Success, and the phone will automatically restart.
⚠️ Note: When choosing Clean All mode + lock make sure the firmware matches the region of the device. If you fill up Chinese firmware and lock the bootloader on a global device, it will go into a hard bootloom, and unlocking it without a service center will be extremely difficult.
Possible mistakes and ways to solve them
During the firmware process, users often encounter Mi Flash error codes, one of the most common is the Error: Missing antirollback index or messages related to downgrade protection (Anti-rollback), a security mechanism that prohibits the installation of a version with a lower security index than the current one.
If you encounter an Anti-rollback lock, you can't get around it by software. The index is written to the secure memory area (efuse) and increases with each official update, so you'll have to look for a firmware version with the same or higher index but an earlier build date, which isn't always possible.
Another common problem is that it freezes 10 percent or 50 percent, which usually indicates driver problems. USB Or a cable. Try using another. USB-port (preferably) USB 2.0), replace the cable or reinstall the Qualcomm/MediaTek drivers.
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The main reason for the failure in downgrade is an attempt to install firmware with a lower level of protection of the Anti-rollback than installed in the bootloader of the device.
Primary setting after rollback
Once the old firmware version is successfully installed, the smartphone will launch as a new one. The initial setup will take longer than usual, as the system needs to optimize applications and files. Don't be alarmed if the phone heats up in the first 15-20 minutes of operation - that's normal.
You'll have to reconnect your Wi-Fi, enter your Google account and your Mi Account. When you restore your backup, try not to reset your system as a whole, but to only transfer your contacts, photos and apps. Restoring your system settings from the backup of the new version to the old version can cause conflicts again.
After loading the desktop, it is recommended to immediately disable the automatic system update so that the phone does not download the problematic version again. To do this, go to the settings, find the updates section and turn off autoboot.