Owners of Xiaomi smartphones often face the need to manually install or restore the operating system, and situations can vary: automatic updates via Wi-Fi do not end, the device is in a reboot cycle, or the user simply wants to switch to the global version of MIUI 12 instead of the Chinese one, in which case using a personal computer becomes the only reliable way to bring the gadget back to life.
Flashing requires careful and rigorous sequence of actions. A mistake at any stage can lead to the failure of the device, so it is important to prepare all the necessary tools in advance. We will look at proven methods that allow you to install the software even in difficult cases when the phone does not boot normally.
Below is a detailed algorithm of actions covering hardware preparation, driver installation and direct download of system files. The right approach minimizes risks and allows you to successfully upgrade Android to the desired version.
Preparation of equipment and choice of firmware method
Before starting any manipulations with system files, you must make sure that there is a high-quality USB-Cheap charging cables often don’t support data transmission, which will cause permanent connection breaks at the most inopportune moment. Use the original wire or certified analog with a thickness of the vein, sufficient for stable exchange of information between the PC and the smartphone.
There are two main ways to install software: through Recovery mode and through Fastboot mode. The first method is simpler and safer, it allows you to update the system without completely losing data (when choosing the right type of firmware); the second method requires an unlocked bootloader, but gives you full control over the memory partitions and allows you to roll back to an earlier version or change the region of the device.
⚠️ Warning: Be sure to back up all important data before starting the procedure. The flashing process, especially through Fastboot, often involves full formatting of internal memory.
You will also need a computer running Windows, as most of Xiaomi’s utilities are optimized for this platform. Make sure that the hard drive has at least 10 GB of free space to unpack archives and temporary files.
Loading firmware and installing drivers
The critical step is to find the right system image file, the firmware must be strictly consistent with the model of your device, installing a version from another smartphone can lead to irreversible damage to the hardware, such as failure of communication modules or touch screen, and search for files on official resources or trusted portals, such as Xiaomi Firmware Updater.
The files have the extension.zip for the Recovery method and.tgz for the Fastboot method. After downloading the archive must be unpacked. For the Recovery method, the.zip file sometimes needs to be renamed to update.zip and placed in the root of internal memory if the installation is done without a computer, but in our case we will use a PC.
Without properly installed drivers, the computer will not see the phone in service modes. to work with Fastboot and ADB, you need the Android SDK Platform Tools package. Drivers are often installed automatically when connected, but in the case of Windows 10/11, you may need to manually install through Device Manager.
- 🔍 Download the current version of the Mi Flash Tool from the official developer website.
- 💾 Download the Qualcomm or MediaTek driver package depending on your smartphone’s processor.
- 📂 Unpack the downloaded firmware image into a short-path folder, for example, C:/miui_rom/, Avoiding file name encoding errors.
Once the drivers are installed, it is recommended to restart the computer, which ensures that all system services responsible for interacting with the system are fully operational. USB-ports, will be launched correctly and recognize the connected device in bootloader mode.
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Use it. USB-ports located on the back of the system unit (direct to the motherboard), as they provide more stable power and connection than the ports of the front panel or USB-hub.
Method 1: Recovery Mode Installation (Mi Recovery 3/5)
The Recovery update method is the most gentle one, allowing you to install the new version of MIUI 12 on top of the existing one, saving user data if the versions are compatible, and for this method, the phone must be able to boot into recovery mode.
First, copy the update.zip firmware file to the root folder of your smartphone's internal memory. If your phone doesn't turn on normally, plug it into your PC when it's off, holding both the power and volume buttons at the same time, and the Mi Recovery menu will appear on the screen.
Navigation in this menu is done with volume buttons, and the choice is confirmed by the power button. You need to select Connect with MIAssistant. Then the computer runs the MIUI bootloader program or uses a web-based interface if it is supported, but most often this method uses the built-in mechanism in Recovery itself, if the file is already on the memory card, or third-party utilities for ADB.
However, the classic "from computer" method for Recovery mode involves the use of the ADB-Connect your Recovery phone to your PC. Open the command line in the Platform Tools tool folder and enter a command to check the connection:
adb devicesIf the device appears in the list, you can initiate the installation.
adb sideload update.zipIt takes a few minutes. The progress bar will be displayed on the phone screen, and when it's done, the device will automatically restart.
☑️ Checklist before firmware through Recovery
Method 2: Fastboot and Mi Flash Tool
This is the most powerful tool in the Xiaomi expert’s arsenal, which allows you to completely rewrite all memory partitions, eliminating any software errors, the main condition is that the bootloader must be unlocked, if the bootloader is blocked, the program will give an error, and the process will not begin.
To enter Fastboot mode, turn off your smartphone and press the volume button. Hold it, connect the cable to your computer. The screen will show an image of a rabbit repairing an android labeled FASTBOOT, which means that the device is ready to receive low-level commands.
Launch the Mi Flash Tool on behalf of the administrator. Press Refresh button – your device’s serial number should appear in the list. If the number appears empty or an error instead of the number, check the drivers in Device Manager (Section “Ports (COM and LPT)” or “Xiaomi Devices”).
Press the Select button and specify the path to the folder with the unpacked firmware (where the file lies). flash_all.bat At the bottom of the window, select firmware mode:
- 🟢 Clean all: Complete data cleanup recommended for regional transition (CN -> Global) or in case of serious failure.
- 🔵 Save user data: Attempting to save data only works if you don't change the region and downgrade the Android version.
- 🔴 Clean all and lock: Completely clean and lock the bootloader. Use only for global firmware on global devices, otherwise you will get a brick".
⚠️ Warning: Selecting the option "Clean all and lock" with the wrong firmware (for example, Chinese on the Global device) will lead to a complete lock of the device with no downloadability.
After selecting the mode, press Flash. the process will take 200 to 600 seconds. Do not turn off the cable or touch the phone until the Success message appears.
Why does the Mi Flash Tool give you the error "Miss matching image and device"?
Common mistakes and ways to solve them
In the process of firmware, users often encounter error codes. One of the most common is the error 0x80004005 in the Mi Flash Tool. It often involves access rights or file path length. Solution: move the firmware folder to the root of the C disk: and rename it to a short name, such as rom, and run the program on behalf of the administrator.
Another common problem is hanging out at the "Sending image" or "Programming" stage, which may indicate a faulty one. USB-cable, poor port or power shortage. Try replacing the cable, using another USB-port (preferably) USB 2.0) or install the Qualcomm utility QPST Forcing the phone to be switched to Emergency Download (EDL), If the standard Fastboot does not respond.
If the phone doesn’t turn on after firmware and only the Mi or Redmi logo burns, the persist or modem partition may be damaged. In this case, a re-firmware with the Clean all option is required. If this does not help, you may need an authorized Mi Account to be installed through EDL mode, since some partitions are protected by a signature.
| Type of error | Probable cause | Method of decision |
|---|---|---|
| Device not defined | No drivers / Failed cable | Install drivers manually, replace the cable |
| Error 0x80004005 | Access rights / The path to the file | Launch from admin, path C:/rom |
| Locked loader | Fastboot firmware attempt | Unlock through Mi Unlock or use Recovery |
| Bootloop (Reboot Cycle) | Version Conflict / Data Error | Fully cleaned firmware (Clean all) |
It is important to understand that software failures are often the result of human error. Careful reading of the logs in the firmware can tell you the exact reason for the failure. Logs are usually stored in the folder with the installed utility or in the system folder Temp.
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Most of the errors in Xiaomi firmware are solved by replacement USB-Cable, transfer files to the root of the C disk: or try again after restarting the computer and phone.
First Start and Configure MIUI 12
Once the process is successfully completed and the Success label appears, the phone will restart. The first run after the MIUI 12 firmware can take up to 10-15 minutes. The system optimizes applications and adjusts settings. Don't try to speed up this process with the press of buttons - this can lead to a freeze.
When you first turn on, you'll be greeted with a welcome window, and if you've opted for a full cleanup, your phone will be like a new one, and you'll be asked to choose a language, connect to Wi-Fi, and log into your Mi Account, a mandatory step for your device to be activated and your cloud services to work.
Once set up, check the firmware version in the Settings → About Phone menu. Make sure the version number matches the one you planned to install. It is also recommended to check the main modules: camera, speaker, microphone and touch screen to ensure that the device is fully functional.
Now your device is updated to the current version. Check the updates in the settings regularly to get security patches and new features from the manufacturer.