Many users of the Xiaomi ecosystem sooner or later face the need to get extended access rights to the system of their device. Standard firmware MIUI or HyperOS limits the installation of custom recavators, modification of system files and obtaining root rights. The key obstacle here is a locked bootloader, which protects the operating system from unauthorized changes.
The procedure, commonly referred to as “bootloader reset,” is technically an official unlocking procedure that erases all data from the device, so requires careful preparation, and without it, any attempt to modify the smartphone deeply is doomed to failure or could lead to software errors.
In this article, we will discuss in detail the algorithm of actions, the necessary software and potential risks. You will learn how to tie an account, how much you will have to wait and what pitfalls the Mi Unlock Tool hides. Understanding these nuances will save you time and nerves in the process of setting up the gadget.
What is a bootloader and why unlock it
A bootloader is a special program that runs before the operating system is turned on, and its main task is to verify the integrity and authenticity of the software installed on the device. Xiaomi smartphones have a default lock that prevents the launch of any code that does not have a digital signature of the manufacturer.
Unlocking opens doors for enthusiasts, and you get custom firmware like LineageOS or Pixel Experience that can speed up your old device or bring new features, and it's the only way to install advanced tools like Magisk.
⚠️ Warning: Unlocking the bootloader automatically voids the software warranty. In some regions, service centers may refuse free repairs if they see signs of interference with the system partition.
It is also worth noting that once unlocked, some security features will stop working, for example, banking applications may require additional manipulation to run, and the quality of shooting in some cases (when installing global firmware on Chinese versions) may change.
Impact on Widevine L1
Preparation of a smartphone and Mi Account
The first and most important step is to link your account, and without this procedure, the unlock utility will not see your device or will give you an authorization error. SIM-card with active mobile Internet, as the link is via a cellular network, not Wi-Fi.
Go to your smartphone settings and find About Phone. Click multiple times on the MIUI version to activate the developer menu. Next, go to Advanced Settings → Developer. Here, find Mi Unlock Status and click Add Account and Device.
☑️ Checking before unlocking
Once the link is successful, the system will report status, and it will often be reported that you have to wait a certain time (usually 7 to 168 hours), which is tied to the device's IMEI and account, and it is impossible to bypass it with standard methods.
| Parameter | Requirement | Importance |
|---|---|---|
| Mi Account | I'll be sure. | Critically. |
| SIM-map | I'll be sure. | Critically. |
| Battery charge | More than 50% | Tall. |
| USB cable | Original. | Medium |
| Drivers. | Installed | Tall. |
Make sure your device has USB debugging enabled. This item is in the same "Developers" menu. Without the active USB Debugging flag, your computer won't be able to send the necessary commands in Fastboot mode.
Required software and drivers
The official Mi Unlock Tool does not have versions for macOS or Linux, so the use of emulators or virtual machines is not recommended due to the instability of the drivers.
You should only download the program from the official website en.miui.com/unlock. Using third-party builds can carry the risk of infection with viruses or theft of your account data. After downloading the archive, unpack it to the root of the C disk so that the path to the executable file does not contain Cyrillic characters.
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Use it. USB-port 2.0 on the motherboard (back of the system unit), rather than on the front panel of the case or through the USB-This significantly reduces the risk of communication failure during the critical phase of firmware.
Windows 10 and 11 often automatically install standard ADB drivers, but Fastboot mode may require specific files. If Device Manager doesn't see the phone in bootloader mode, install Qualcomm HS-USB QDLoader or Mi PC Suite drivers.
The process of installing drivers is better done in advance, before putting the phone into a special mode, this will avoid rushes and potential errors when connecting, make sure that the antivirus does not block the unlock utility.
Step-by-step instructions for unlocking through Mi Unlock
When the waiting timer is up and everyone is done, you can start the basic process: start the Mi Unlock Tool on your computer and log in to your account, the same one that was tied to your smartphone earlier.
Put your smartphone in Fastboot mode. Turn the device off completely, then press the power and volume buttons at the same time. The screen should show a hare in a hat-earhead repairing an android, or the inscription FASTBOOT.
Connect your phone to your PC with a cable. The program should say "Phone connected." Press the "Unlock" button. The system will warn you that all data will be deleted. Confirm the action.
Process running...
Checking bootloader status...
Unlocking...
Success: 100%The smartphone will automatically restart and start the process of cleaning data (Wipe Data). This can take from 5 to 15 minutes. Once completed, the device will turn on as new, greeting you with the screen of choice of language.
⚠️ Warning: If the process is 99% stuck or there is an error, don't panic or turn off the cable immediately. Wait for the error message to appear in the program log. Often the problem is solved by reconnecting the cable or changing the cable. USB-port.
Common mistakes and ways to solve them
One of the most common problems is the "Couldn't verify device" error, which means that the account in the program is not the same as the one on the phone, or that it hasn't been long since the link was made.
Another common error is “Unlock failed: Connect to network failed.” The utility requires a stable connection to Xiaomi servers. Try using mobile internet instead of Wi-Fi, as providers sometimes block the ports needed to run the tool.
If you see a message saying, "Current account is different from the account info on the device," you need to re-untie the account in the developer menu on the phone and link it again, and then the 168-hour wait can start anew, as the counter is reset.
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Most errors are not hardware-related, but rather data desynchronization on Xiaomi servers, and a 24-hour pause after an error often solves the problem better than multiple attempts.
There are cases where the program simply can't see the phone, and in Windows Device Manager, there may be an unknown device, so try to install the drivers manually, pointing the way to the driver folder inside the unlock utility archive.
What to do after unlocking the loader
Once you've successfully completed the procedure, you'll see a bootloader alert every time you turn on the phone, which is normal and confirms that protection is off, and you can now start installing TWRP Recovery or obtaining superuser rights.
The first thing to do is to upgrade to the latest available version if you unlocked it on your old firmware, and check the basic functions of calling, Wi-Fi, Bluetooth and cameras to make sure the system is stable.
To improve security, you can use Magisk Hide or similar apps to hide the fact of unlocking from the verification applications, but remember that this is a cat and mouse game with bank software developers.