The process of flashing Xiaomi smartphone often becomes necessary when you experience software failures, want to change the region of the device or switch from the Chinese version to the global. Many users are afraid to perform this procedure on their own, fearing to turn their gadget into a “brick”, but with strict adherence to the algorithm of actions, the risk is minimal.
There are two main ways to update software: through the Recovery menu (update over the air or locally) and through the Fastboot mode using a computer. The second method is a more powerful tool that allows you to completely clear the internal memory and install the fresh version of the system clean. It is the method of firmware through the PC and the Mi Flash Tool utility that will be discussed in this guide, since it solves 99% of software problems.
Before you start taking action, you need to understand the importance of preparation. Wrong firmware version or interruption of the data writing process can lead to the inability to boot the operating system. In this article, we will discuss in detail the preparation of drivers, choosing the right image file and the step-by-step process of filling a new system into memory of your device.
Tool preparation and firmware selection
The first step is to find and download the right firmware file. For Xiaomi and Redmi smartphones, there are two types of packages: Recovery ROM (extension.zip) and Fastboot ROM (extension.tgz). For the method we are considering, you need Fastboot ROM. You can find current versions on the official website or trusted resources, such as miui.com or xiaomirom.com. It is important to make sure that you download the file specifically for your model, since the firmware from Redmi Note 10 will not be suitable for the Redmi Note 10.
The critical point is to unlock the Bootloader. If you plan to switch from Chinese (CN) to global (Global) or install a custom recover, the bootloader status should be "Unlocked." Check the current status in the Settings menu → About Phone → MIUI version, where you need to click on the build number several times, and then select "Status of the bootloader" from the advanced settings menu.
Difference Between Recovery and Fastboot ROM
To work, you will also need a Windows computer, original or high-quality. USB-You also need to download and install a special Mi Flash Tool and drivers on your PC. ADB/Fastboot. Without properly installed drivers, the computer simply will not see the smartphone in the desired mode.
Installation of drivers and preparation of PC
Installing the right drivers is the foundation of a successful firmware. Even if you download the perfect firmware, but the computer can't recognize the connected device, the process won't start. Drivers usually come bundled with the Mi Flash Tool installer, but sometimes they have to be installed manually through Device Manager.
The process of installing drivers requires attention to detail. Once you connect your phone in Fastboot mode, a device called the Android Bootloader Interface should appear in Windows Device Manager. If you see a Unknown Device or exclamation point instead, the drivers are not installed or are not working properly.
- 🔌 Connect the smartphone in the off state, clamping the volume reduction button.
- 💻 Open Windows Device Manager and search for Portable Devices or Other Devices".
- 🛠 Install the package. ADB and Fastboot Driver or use the installer from the folder with the Mi Flash Tool.
- ✅ Make sure the status bar has the name "Fastboot".
Sometimes Windows may block the installation of drivers because of the digital signature verification, which may require a temporary disabling of the driver signature verification when the operating system is booting, a standard procedure for working with low-level Android device software.
Fastboot mode: entrance and diagnosis
Fastboot mode is a special diagnostic protocol built into the Android bootloader that allows you to transfer data directly to the device memory, bypassing the operating system, and it is this mode that is used to firmware, unlock the bootloader and perform other system operations.
To enter this mode on most Xiaomi smartphones, you need to turn off the device completely. Then, holding the Volume Down button, connect the phone to your computer via the phone. USB-The logo of Mi Bunny fixing the android should appear on the screen and it should say"FASTBOOT" If the phone vibrates but the screen doesn't catch fire, try another one. USB-port.
⚠️ Warning: While in Fastboot mode, the phone screen may go out to save energy. Don't be alarmed if the image is missing - just press any volume button to wake the screen. Don't turn off the cable until all procedures are complete.
There is also an EDL (Emergency Download Mode) mode, which is used in more complex cases when the phone does not respond to buttons or the bootloader is damaged. Entering into EDL often requires disassembling the case and closing contacts on the board, so for standard firmware, we focus on Fastboot.
The process of firmware through the Mi Flash Tool
Now, to the main part of the process, make sure that the firmware archive (.tgz) is unpacked. The path to the folder should not contain Cyrillic characters or spaces, it is best to place files at the root of the disk, for example, to place files in the root of the disk, C:\ROM\. The name of the folder should be short and clear.
Launch the Mi Flash Tool on behalf of the administrator. Press the Refresh button in the upper right corner. If the drivers are installed correctly, a line will appear in the list with your device's serial number. If the list is empty, check the cable connection and driver status in Device Manager.
Press the "Select" button and point the path to the folder with the unpacked firmware. Once you select the path, the compatibility information will appear at the bottom of the window. Now you need to choose the firmware method. There are three options, each of which affects what happens to your data.
- 🧹 Clean all – complete cleanup of all data, installation of a clean system (recommended).
- 💾 Save user data: attempts to save user files, but versions may conflict.
- 🚫 Clean all and lock – complete cleaning and locking of the bootloader (only for the same regions!).
☑️ Checklist before pressing Flash
After selecting the "Clean all" method, press the "Flash" button. The process will take 200 to 600 seconds, during which time you turn off the cable or interrupt the program, and the progress bar will fill in green, displaying the current stage of writing partitions.
Table of firmware methods and their features
To better understand the differences between the ways you install software, let’s take a comparative table that will help you choose the best option based on your goals and the state of the device.
| Method | A PC is needed. | Data retention | Difficulty | Appointment |
|---|---|---|---|---|
| OTA Update | No. | Yes. | Low. | Planned updates |
| Recovery (Local) | No. | Yes/No | Medium | Change of MIUI version |
| Fastboot (Clean) | Yes. | No. | Medium | Clean installation, region change |
| Fastboot (Lock) | Yes. | No. | Tall. | Back in stock, selling |
As you can see from the table, Fastboot is the most versatile tool for deep work with the system, it allows you to ignore regional restrictions when installing (if the bootloader is unlocked) and guaranteed to eliminate software errors accumulated during use.
Possible errors and their solution
During the firmware process, various errors can occur, the codes of which are displayed in the Mi Flash Tool log. One of the most common is the error "Miss matching image and device", which means that the selected firmware and phone model are incompatible, in which case you need to recheck the device code (codename) and download the correct file.
A “Flash error” or a certain percentage of the error is often a sign of a problem with the USB-Try connecting the cable directly to the port on the motherboard (back of the system unit), bypassing the system unit. USB-Hubs, it might also help to restart the service. ADB or reinstallation of drivers.
⚠️ Warning: If the phone goes into an endless bootloop after firmware, try resetting via Recovery (Wipe Data). If that doesn't help, it may have been selected firmware from another model or the bootloader has been damaged.
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Use it. USB-Port 2.0 instead of 3.0 for connecting older Xiaomi devices. USB 3.0 sometimes causes problems with data transfer in Fastboot mode on older motherboards.
Another common problem is the Mi Account authorization error. If you are flashing a device with a locked bootloader, you may need an Internet connection and authorization in the account from which the unlock was made. SIM-Card inserted (if required) or Wi-Fi active.
Completion of the process and initial setup
When the progress lane in the Mi Flash Tool reaches 100% and turns green, and the status appears to say "success", the process can be considered complete. The phone automatically restarts. The first download after the firmware can take from 5 to 15 minutes, as the system optimizes applications and creates new configuration files.
Once you download, you'll see a welcome screen. If you choose the "Clean all" method, the device will be like new out of the box. You'll need to re-sign in to your Google account and Mi Account. All apps and settings will have to be re-installed, so backing up important data before firmware was critical.
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Successful firmware via Fastboot with Clean All option is the best way to get rid of system debris, bugs and viruses, returning the smartphone to factory speed.
Check the system version in the Settings → About phone menu to make sure the right version is installed. It is also worth checking the main modules: the camera, speakers, microphone and sensor to rule out any hardware malfunctions that may have occurred coincidentally.