Redmi smartphones are famous for their balance between price and performance, but over time, even such reliable devices can encounter software errors. If your Redmi 8 Pro is unstable, freezes, or you want to change the Chinese version of the system to a global one, the only sure solution is to reflash, which allows you to completely clean up the memory of system debris and return the device to factory freshness.
Before you start taking action, it is important to understand the risks and prepare everything you need. Software change requires careful and accurate follow-up, as incorrect actions can lead to the failure of the gadget. In this article, we will discuss in detail all the steps, necessary tools and methods of Xiaomi recovery.
The firmware process is not trivial, but with basic computer skills, it is doable. For the Redmi 8 Pro, it is critical to use original drivers and proven firmware images, since experimenting with custom builds on this processor can cause problems with the camera module. Let's get ready for the procedure.
Preparation of the device and assembly of tools
The first step is to prepare the workplace and the smartphone itself thoroughly, and you will need a Windows computer, because the drivers for Xiaomi work best in this environment. USB-cable, preferably original, to avoid communication interruptions at the most inopportune time.
You need to install all updates on your smartphone if it's still on, and you need to back up your data. The firmware process involves fully formatting your internal memory, so all contacts, photos and documents will be permanently deleted. Save important information to the cloud or to an external medium.
You'll need specific utilities to work, which you'll need to download in advance, and the absence of any of the components can interrupt the process in the middle.
- 📦 ADB Fastboot Tools – a basic set of commands for interacting with the Android bootloader.
- 🔌 USB Drivers – drivers for determining the device by the computer in different modes of operation.
- 🌍 Mi Flash Tool – official utility from Xiaomi for firmware through Fastboot.
- 📂 Firmware image – a file with the extension.tgz, corresponding to your model (codename guacamole).
⚠️ Warning: Make sure your smartphone battery is at least 60% powered, and a sudden power outage while recording system partitions can turn the device into a brick".
Once you have downloaded all your files, unpack the archives in the root of the C disk so that the paths to them don't contain Cyrillic or spaces. This is a common error that causes utilities to be unable to find executables. The path should look something like this: C:\adb\ or C:\xiaomi\flash\.
Unlocking the Bootloader bootloader
The official firmware of Xiaomi devices is only possible with the bootloader unlocked, a security mechanism that prevents untested software from being installed. The process of obtaining the rights to change the software takes time and requires linking the Mi Account to the device.
To start, turn on Developer Mode. To do this, go to Settings → About Phone and quickly click on MIUI build number seven times. Once the "You've become a developer" notification appears, a new menu will open in the system settings.
In the Developer menu, find the "Mi Unlock status" item and activate it. You also need to enable USB debugging. After that, the smartphone is ready to pair with the unlock utility on your PC.
☑️ Checklist before unlocking
Run the Mi Unlock Tool on your computer and log in to your account. Connect your phone in Fastboot mode (pressing both the volume and power down buttons at the same time). If done correctly, the utility will show the device status and lock status.
If less than 7 days (168 hours) have passed since the account was linked, the program will require a wait. It is officially impossible to circumvent this restriction, you will have to wait for the specified time without untidying the account. After the expiration date, repeat the procedure and the bootloader will be unlocked and the data from the phone will be erased.
Finding and Choosing the Right Firmware
Choosing the right version of the operating system is key to a successful installation. For the Redmi 8 Pro, there are different types of firmware: Recovery (to update via the phone menu) and Fastboot (to install via PC), and we need the latter option, because it allows you to completely clean and change the region.
The firmware is divided into Stable (stable) and Beta (test). For everyday use, it is recommended to choose only stable versions. Also pay attention to the region: Global for the world, EEA for Europe, RU for Russia and the CIS, CN for China.
| Type of firmware | File extension | Method of installation | Data retention |
|---|---|---|---|
| Recovery | .zip | Through the phone menu | Maybe. |
| Fastboot | .tgz | Through PC (Mi Flash) | No (full reset) |
| Recovery (OTA) | .zip | Automatically. | Yes. |
| Fastboot (Clean) | .tgz | Through the PC. | No. |
Images should only be downloaded from trusted resources, such as the official MIUI bootloader website or authorized forums. Using modified builds from unknown authors can lead to leakage of personal data or unstable communication modules.
Where to find codename devices?
Pay attention to the Android and MIUI version. Don't try to roll back on a very old version of the system with a new one without special manipulation, as Anti-Rollback protection can lock the device permanently. Always go to the version equal to or newer than the current one.
Fastboot and Mi Flash Tool
This is the main method that allows you to completely reinstall the system. Mi Flash Tool is the official tool of Xiaomi engineers. Before starting, make sure that the drivers are installed correctly and the phone is in Fastboot mode.
Unpack the downloaded firmware archive. The path to the folder should not contain Russian letters. Run the Mi Flash Tool on behalf of the administrator. Press the Refresh button, and if the drivers are correct, your device's serial number will appear in the list.
Press the "Select" button and point the path to the folder with the unpacked firmware. It is important to choose the folder that contains the file inside. flash_all.bat After choosing a path, pay attention to the bottom of the program window.
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash vendor vendor.imgAt the bottom of the Mi Flash Tool interface, there are three firmware modes. Clean all clears memory completely and puts a clean system in place - this is the best choice for changing region. Save user data mode will try to save files, but when you change region it often causes errors, so it's best not to use it.
⚠️ Warning: Never choose "clean all and lock" if you are changing region (e.g. from China to Global) and locking a bootloader with incompatible firmware will lock the device (Hard Brick).
Once you select the mode, press Flash. The process will take 200 to 500 seconds. The progress bar will be filled in green. Do not touch the cable or turn off the computer until the "Success" message appears.
💡
If the process is 90% or 99% frozen, don't panic right away. Sometimes partition checks take time. However, if the timer is more than 1000 seconds, check the cable or try another one. USB-port (preferably) USB 2.0).
Once successfully completed, the smartphone will automatically restart. The first download can last up to 10-15 minutes as the system optimizes applications.
Installation via Recovery Mode (without PC)
If the computer is not available, you can try updating or reflashing the device through the built-in recovery menu, which is suitable if you want to upgrade to a newer version within the same region or restore the system if you have damage.
Download the firmware in Recovery (.zip) format. Rename the file to update.zip for convenience, although this is not always necessary.Put the file at the root of the smartphone's internal memory.
Go to the Recovery menu. To do this, turn off your phone and press the power and volume buttons. From the menu that appears, select the language (English or Chinese) and click on the installation icon (Install).
- 📂 Select a file update.zip list.
- ✅ Confirm the action by pressing "OK" or "Confirm".
- ⏳ Wait until the installation process is complete.
- 🔄 Click "Reboot to System".
This method is less reliable in case of serious crashes, as it does not rewrite all partitions of memory as deeply as Fastboot.If the system is damaged critically, the Recovery menu may simply not start or give an error when checking the file signature.
💡
Recovery is convenient for scheduled updates, but for changing the region (China -> Global) or recovering from failures, the only correct solution is the Fastboot method via PC.
Without this, the installation may not begin.
Possible mistakes and ways to solve them
Mi Flash Tool error codes usually indicate a specific problem, for example, Miss matching image error indicates that the chosen firmware is not suitable for this model or version of the bootloader.
If your computer stops seeing your phone in Fastboot mode, try reinstalling the drivers. In Windows Device Manager, the device can appear as "QHSUSB_BULK" Or "Unknown Device." In this case, you need to manually update the driver, indicating the path to the folder with the drivers Qualcomm or Xiaomi.
A common problem is the Mi Unlock Tool login error, which is solved by checking the date and time on the computer (they must match the real ones), as well as logging out of the Mi Account in the utility itself and re-signing in, sometimes using a mobile hotspot instead of home Wi-Fi helps.
⚠️ Warning: If your phone goes into an endless bootloop after you have firmware, try resetting it completely via Recovery (Wipe All Data). If that doesn't work, you'll need to re-rout the firmware through Fastboot with a Clean All mode selection.
In rare cases, especially when using older versions of Mi Flash, there may be a Flash Error error. Try using the 2018 or 2020 version of the utility, they often work more stable with older models like the Redmi 8 Pro.