Xiaomi smartphone owners who order equipment from China often face the presence of a Chinese version of the operating system, which can be CN ROM (Chinese) or RU ROM (Russian, but with restrictions), which is based on the Chinese build. The main problems of such versions are the lack of Google Play, the presence of excess Chinese software, incorrect interface translation and the lack of some LTE frequencies important for European operators.
Changing the firmware allows you to turn the Chinese into a full-fledged international device with support for all necessary services. However, this process is not without risks and requires careful attention to detail. In this article, we will discuss the main methods of installing a global version of the software, consider the need to unlock the bootloader and answer frequent questions of beginners.
Before you start taking action, you need to understand that flashing is an interference with the software of the device. Wrong actions can lead to loss of warranty or, in the worst case, to the transformation of the smartphone into a brick.
Differences between CN ROM, RU ROM and Global Version
It is important to clearly understand what version of software you are dealing with. CN ROM is a purebred Chinese firmware, sharpened to local Baidu services and no Google. It does not have Russian, and notifications can come with a delay due to aggressive battery optimization. RU ROM is often the same “Chinese”, but with a pre-installed app store and a Russifier from enthusiasts. It is critical to understand: RU ROM is not an official global version, it is a modified Chinese build.
Official Global ROM (Global Stable, developed specifically for the international market, it's Google certified, it supports Widevine. L1 (what's important HD-Netflix content) and contains all the necessary frequencies, and installing this version is the ultimate goal of most users who want to get rid of the restrictions.
- 🌏 Language and localization: The Global version contains full translation, including voice input and system fonts, while in the CN Russian language may be absent or may be partial.
- 📶 Communication Frequencies: International firmware often has an extended list of supported LTE Band (B7, B20), critical to the job 4G in rural areas and inside buildings.
- 🛡️ Global versions get security patches and Android updates faster and more stable than their Chinese counterparts, which depend on localization.
It is also worth mentioning the Regional ROM. These are country-specific firmware (India, Indonesia, Europe) that may differ in a set of pre-installed applications. When choosing a firmware file, always pay attention to the encoding in the title: MIUI_Global against MIUI_CN.
Preparation: Tools and Device Verification
Before starting the procedure, you need to make sure that your device supports the installation of global firmware at all. There are models with the index Global and China. If you bought a purely Chinese version (for example, Xiaomi 13 China), then changing the firmware region can be blocked at the hardware level.
For diagnostics, enter the Phone app code ##64663##. In the menu that opens, look for Version Information. If the Region bar says China, you may encounter a “Downgrade not allowed” error or bootloader lock, which requires changing the region through a hidden menu, which is a more complicated procedure.
⚠️ Note: If your phone is linked to your Mi Cloud account, be sure to log out before flashing it. Otherwise, after the data reset, the device will request a password from the old account, and it will be impossible to unlock it without the owner's data.
You will also need a computer with a Windows operating system, high-quality. USB-cable (preferably original) and free disk space. Remember to back up all important data, as the firmware process is guaranteed to delete all files from the internal memory of the smartphone.
☑️ Preparation for flashing
Recovery Method: Easy installation via menu
The easiest way to change firmware is to use the built-in Recovery mode, which is suitable if you want to upgrade within the same region (for example, from global to new global) or if the bootloader is unlocked. First, download the firmware archive in.zip (Recovery ROM) from the official website or a trusted source.
Rename the downloaded file to update.zip and place it in the root of the phone's internal memory. Next, go to the settings, select About Phone and click on the MIUI (or HyperOS) version. In the window that opens, click three dots in the corner and select Select the firmware file. The system will find the archive and suggest starting the installation.
If you are trying to change the region (C) CN In Global, standard Recovery will give you an error, which requires a Recovery Fastboot mode or a complete data cleanup. update_global.zip, But it doesn't work on all models. If the phone goes into a cyclical reboot, you'll need to reset it via Fastboot.
💡
Use only official firmware files from miui.com or verified resources like xiaomi-firmware-updater.com. Third-party builds may contain malicious code.
Fastboot Method: Professional Firmware Reflashing
The most reliable and versatile method is to run the firmware through Fastboot mode using the MiFlash Tool, which allows you to completely clean the device’s memory and write the new system from scratch. To do this, you will need a firmware archive in.tgz (Fastboot ROM) format, which you need to pre-unpack on your computer.
Put your smartphone into Fastboot mode, holding down the Volume Down button and Power when your phone is off. Connect the device to your PC. In Device Manager, it should be defined as Android Bootloader Interface. If the drivers are not standing, install Qualcomm drivers or ADB drivers.
Run the MiFlash Tool, select the folder with the unpacked firmware. At the bottom of the window, select Clean all or Clean all and lock. The last point is dangerous: if the firmware does not match the region of the device, the phone will go to brick. So it is safer to choose Clean all.
| Firmware mode | Data retention | Locking the loader | Risk of error |
|---|---|---|---|
| Update | Preserve. | No. | Low. |
| Clean all | Removed | No. | Medium. |
| Clean all & lock | Removed | Yes. | High (when changing region) |
Once you select the settings, press the Flash button. The process will take 3 to 10 minutes. Do not turn off the cable or touch the phone until the Success message appears in the program log. Once you have successfully firmware, the phone will automatically restart.
Unlocking the bootloader (Unlock Bootloader)
Officially installing global firmware on a Chinese device is often impossible without an unlocked bootloader. Xiaomi has implemented this security measure to prevent device theft and malware installation.The unlock procedure requires filing an application through the Mi Unlock Tool app and linking an account.
The process is as follows: in the phone settings, turn on Developer For and activate Factory Unlock. Link Mi. After that, download Mi Unlock on your PC, log in to the same account and follow the instructions. The system will alert you to the risks and may require a wait of 7 to 168 hours (week) before the first unlock.
⚠️ Note: Once the bootloader is unlocked, Find the Device and theft protection work differently, and some banking applications may refuse to work without additional manipulation (hiding root rights, if any).
There is also paid unlocking through service accounts, which allows you to bypass the wait of 168 hours, a method popular among those who need to urgently reflash the phone, but it carries certain risks, since you trust access to your device to third parties.
What is EDL Mode?
Possible mistakes and ways to solve them
During the flashing process, users often encounter Missmatching image and device error, which means that you are trying to install firmware from one model to another or a global version on a device with a locked bootloader, designed for China, the solution is one: look for the correct version of the firmware or unlock the bootloader.
Another common problem is hanging on the MI logo (Bootloop).If the phone doesn't boot for more than 10 minutes, try clamping Volume Up + Power to log in to Recovery and doing Wipe Data. If that doesn't work, you'll have to reflash the Fastboot again, choosing a full clean mode.
Sometimes the computer stops seeing the phone in Fastboot mode.
- 💻 Change. USB-Port: Connect the cable directly to the motherboard (back of the PC), avoiding front ports and USB-hub.
- 🔌 Replace cable: Cheap cables often only work for charging and don't transmit data.
- 🔄 Reinstall drivers: In Device Manager, remove an unknown device and update hardware configuration.
💡
The main rule of successful firmware is that the firmware file matches the codename of your device exactly. Don't flash the Redmi Note 10 Pro with the Note 10 Pro Max firmware.