The transition to the new shell HyperOS was a landmark event for owners of Xiaomi smartphones, but not all users were satisfied with the changes in the interface and logic of the system. It often happens that after an update, the device starts to work unstable, discharge faster or simply does not meet expectations with its speed. MIUI, This requires specific technical procedures.
The process of downgrading a software version is a complex operation that is radically different from a regular “over the air” update. You will have to unlock the bootloader, search for specific versions of firmware and use a PC. It is important to understand that rollback is possible only with the complete deletion of all data, so pre-creating a backup is a critical step, ignoring which will lead to the loss of photos, contacts and applications.
In this article, we will take a look at the algorithms required to successfully return to MIUI 14 or earlier, discuss the risks, tool preparation, and Step-by-step through each step of flashing your device to minimize the likelihood of errors.
Why do users want to return to MIUI?
Although HyperOS is marketed as a lighter and faster system, many users are facing optimizations that don’t always work correctly on older device models, often with increased battery consumption in the background and more aggressive memory management that unloads the right applications from RAM faster than MIUI did.
Another factor is habit.The new system's interface has undergone changes in the settings menu and control panel, causing discomfort for those who have been accustomed to Xiaomi logic for years.Some features, such as advanced Always-On Display settings or specific widgets, can be stripped down or moved, leading to looking for ways to go back.
- 📉 Unstable operation of autonomy and fast battery discharge in the background.
- 🐛 Software bugs that were not fixed in the first beta versions of HyperOS.
- 🔄 The usual interface MIUI It seems more functional for experienced users.
- 📱 Compatibility problems with some third-party applications and banking software.
⚠️ Note: Xiaomi developers do not provide an official button “Roll back update” The process of returning to the previous version is considered an operation with increased risk and is performed by the user at your own risk.
It is also worth noting that switching to a new shell often involves changing the structure of the memory partitions, which means that simply installing the old firmware on top of the new one without completely cleaning the data is technically impossible due to the verification of the bootloader version and the integrity of the system files.
Device preparation and data collection
Before you start taking action, you need to do a lot of preparation. The first and most important step is to create a full backup of your data. Since the rollback process involves a full Wipe Data, all the information on the internal drive will be destroyed without the possibility of recovery by standard means.
You will need a Windows computer that is working properly. USB-cable (preferably original or certified, supporting data transfer at high speeds) and a stable Internet connection. Also make sure that the battery charge of the smartphone is at least 60%, so that the device does not turn off at the most inopportune time.
☑️ Checklist for preparation for downgrade
Pay special attention to your Mi Account. To unlock the bootloader, which is a prerequisite for a rollback, your account must be linked to the device. If you just reset or bought a phone, you may have to wait 7 to 168 hours (depending on the region and account status) after the link before the service allows the unlock.
Unlocking the bootloader (Bootloader)
A key step without which you can not install an older version of the firmware is unlocking the bootloader. Bootloader is a program that starts before the start of the operating system and checks the digital signature of the downloaded software. By default, it allows only the official firmware with the current or newer version to run, blocking the installation of old builds.
To unlock, you will need the official Mi Unlock Tool utility, which you need to download from the site miui.com/unlock. After installing the program and logging into your Mi Account, transfer the smartphone to Fastboot mode. To do this, the device you turn off must be pressed with a volume button and connected to the computer with a cable.
- 🔓 Download and install the latest version of Mi Unlock Tool on PC.
- 🔌 Transfer the smartphone to Fastboot mode (clamping the volume button down when connecting).
- 🖥️ Connect your phone to your computer and press the Unlock button in the utility.
- ⏳ Wait for the end of the waiting timer if it is installed by the service.
The unlocking process initiates a complete cleanup of the data on the device for security purposes. Once successfully unlocked, the phone will reboot, and you will see an open lock icon when booting or the words Unlocked in Fastboot mode. Now the path to install customized Recovery or older versions of firmware is open.
What if Mi Unlock requires 168 hours of waiting?
Finding and Choosing the Right Firmware
The most difficult part of the process is often finding the right firmware file. You need the version of MIUI that was installed on your device before the upgrade, or any earlier version that is compatible with your model. It is important to consider the region: if you had a global version (Global), you can not install a Chinese version (China) or an Indian one (India) without changing the region, as this can lead to verification errors or network problems.
Manual install firmware files usually have the.tgz extension (for Fastboot mode) or.zip (for Recovery). For our case, when the bootloader is already unlocked, it is most convenient to use the firmware method via Fastboot using the Xiaomi Flash Tool utility or manually through the command line, as this gives more control over the process.
| Type of firmware | Expansion | Method of installation | Features |
|---|---|---|---|
| Recovery ROM | .zip | Through the Recovery menu | Requires region matching, can block anti-rollback |
| Fastboot ROM | .tgz | Through PC and Fastboot | Complete cleaning, bypassing some checks when unlocked BL |
| OTA Update | .zip (inside) | Local Update | Not suitable for downgrade without unlocked bootloader |
Download firmware only from trusted sources, such as the official MIUI bootloader website or authoritative forums like 4PDA and XDA Developers. Using files from questionable Telegram channels can lead to malware infection or the installation of a modified build with “surprises”.
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When searching for firmware, look for the model code at the end of the file name (e.g. global for global, ru for Russia, cn for China). Installing firmware in the wrong region will require an additional step to change the region through an engineering menu or reflash with cleaning.
The process of rollback through Fastboot Mode
The most reliable way to roll back HyperOS on MIUI — This is using Fastboot mode and the computer, and this method allows you to completely rewrite partitions of the device's memory, ignoring the version checks that are present when you update through the recovery menu. To work, you will need an unpacked archive with.tgz firmware and a Xiaomi Flash Tool utility or a set ADB/Fastboot driver.
After connecting the phone in Fastboot mode (the volume button is pinched down when you connect the cable) and opening the firmware folder, make sure there is a startup script at the root of the folder. flash_all.bat (complete cleaning) or flash_all_except_storage.bat (without data cleaning, but for a downgrade it is recommended to completely clean up in order to avoid conflicts).
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash vendor vendor.img
fastboot rebootIf you use the Xiaomi Flash Tool, the process looks even easier: select Clean all mode, specify the path to the folder with the unpacked firmware and click the "Flash" button. The program itself will execute all the necessary commands sequentially, in the process the phone can reboot several times, and the progress bar will display the status of the firmware of each partition.
⚠️ Note: During the firmware is strictly forbidden to turn off USB-Interrupting the system partition recording can turn a smartphone into a “brick” that requires recovery through the system partition. EDL-This is often only possible in a service center.
Solving problems and mistakes
Users often experience a variety of errors during downgrades, and one of the most common is a verification error when trying to install firmware through the Recovery menu, which is due to the Anti-rollback protection mechanism, which prohibits installing a version with a lower security index than the current one.
If you receive a message “Can’t verify update” or “Update package is corrupted”, it means that the selected version is the correct version. MIUI It's too old for the current bootloader, so you're going to look for a firmware version with a higher security index, but an older version. Android/MIUI, or use the Fastboot firmware method with an unlocked bootloader that often ignores these checks.
- 🚫 Zip file signature verification failed – the firmware file is damaged or not suitable for the model.
- 🔄 “Current version is higher than the one you are flashing.
- 💻 The device is not defined in Fastboot – try another one. USB-Port, cable or reinstall drivers.
- 🔋 The phone goes into cyclic reboot (Bootloop) – you need a re-firmware with a full wipe (Clean All).
Also worth mentioning is the issue with the Mi Account after the firmware. If you don't sign in to the same account that was tied before unlocking the bootloader, the system can lock the device by requiring a password. This is a theft protection feature, so make sure you remember the login details.
Primary setting after rollback
Once you have successfully installed MIUI, the device will reboot, and you will see the welcome screen. Since you used the Clean All method, the phone will be like new. The first thing you need to do is connect to Wi-Fi and log into your Google account and your Mi Account.
If you’ve used Xiaomi Cloud or made a local backup, you’ll be able to return contacts, notes, and system settings. Apps will have to be re-downloaded from Google Play, but this will ensure that they’re compatible with the current version of the OS.
It is recommended to check for security updates in the Settings menu → About Phone → System Update. Even when you roll back on the old version, it is important to install the latest available security patches for this version of MIUI to close known vulnerabilities.