The appearance of the inscription This Device Is Locked on the screen of Xiaomi smartphone often causes panic among users. This message indicates that the device loader is locked, and the security system does not allow you to make changes to the software or restore access after a reset, most often the problem occurs when you try to flash, install custom recovery or after a failed system update.
In some cases, the lock may be due to the activation of the Find Device function, which protects the gadget from unauthorized access by unauthorized persons. If you are the legitimate owner, the restoration of access is quite possible, but the process requires carefulness and strict adherence to algorithms. Ignoring security rules when unlocking can lead to complete inoperability of the device.
In this article, we will discuss all possible methods of bypassing blocking, from official methods through the Mi Unlock Tool to complex procedures for resetting accounts. It is important to understand that each method has its own risks and is suitable for specific situations.
Causes of the loader lock
The main reason for the announcement is to protect the Android operating system from introducing malicious code at a deep level. Xiaomi is implementing this measure to prevent data theft and installation of modified firmware without the owner’s knowledge. The bootloader is the first program code that runs when a smartphone is turned on, and it checks the digital signatures of all components being launched.
Often users face a problem after buying a device with their hands, when the previous owner did not untie his Mi Account. In this case, the FRP (Factory Reset Protection) mechanism works. Even a full reset will not help, since the first activation system will require you to enter a password from the account to which the phone was associated before the reset.
Also, a blockage may occur due to software failures or interruption of the update process. If a power outage occurs during the installation of a new version of MIUI or HyperOS, the partition structure may be damaged, as a result, the security system goes into emergency mode and blocks any download attempts, requiring confirmation of administrator rights.
⚠️ Warning: Attempting to unlock a bootloader on a device that is wanted or stolen is illegal.
Understanding the cause is key to a successful solution, and if it's just firmware protection, you'll need to officially unlock it, and if you have a problem with your account, you'll have to prove ownership through support or special utilities.
The official method of unlocking through Mi Unlock Tool
The most reliable and secure way to unblock is to use the official Mi Unlock Tool, which requires a Xiaomi account to be linked to the device in advance. It is important to note that after an account is linked, you need to wait a certain period of time, usually between 7 and 168 hours (7 days), before the server allows the unlock.
To start, you will need a computer running Windows and USB-The first step is to activate the developer mode. To do this, go to the settings, find the "Version" option. MIUI» and quickly click on it 7 times. Once the developer menu activation notification appears, go to the advanced settings.
In the Developer Menu, you need to find Mi Unlock Status and link your account, make sure your device is connected to Wi-Fi, not mobile internet, as the system may not accept binding via the mobile network, and once you successfully link, you need to restart your phone.
☑️ Preparation for unlocking
When the wait period expires, turn off your smartphone and go to Fastboot mode, holding the power and volume buttons simultaneously. Connect the device to your computer and launch the Mi Unlock Tool. The program will detect the phone and, if all conditions are met, will unlock the bootloader. Remember, this process will completely delete all data from the device.
What if the timer shows 168 hours?
Fixing FRP Error and Resetting Mi Account
A situation where a phone requires a password from an account after a reset is called FRP Lock. This is a standard security measure by Google and Xiaomi. If you forget your password, the only legal way to restore access is through the recovery form on the official id.mi.com or account.google.com website.
When email or phone number is lost, the process becomes more complicated. There are specialized tools like Xiaomi ADB/Fastboot Tools or paid services like UnlockTool that can help bypass verification by exploiting vulnerabilities in older versions of Android.
If the device is hand-buyed and the previous owner is unavailable, it is almost impossible to unlock FRP without checks and a box. Service centers can also refuse service without proof of purchase.
| Method | Efficiency | Risk of data loss | Skills required |
|---|---|---|---|
| Password recovery | 100% | No. | Basic |
| ADB Commands | Low (old OS) | High-pitched | Advanced |
| Test Point (EDL) | Tall. | Complete. | Professional |
| Service centre | 100% (with a check) | Complete. | Absent. |
It is important to distinguish between account lock and bootloader lock. FRP blocks login, and bootloader lock prevents modification of system partitions. These concepts cannot be confused, since the solutions are diametrically opposed.
EDL mode and deep firmware
EDL (Emergency Download Mode) is a deep Qualcomm memory access layer used by engineers, which often allows you to flash the device even when the bootloader is completely locked. Entering usually requires disassembling the phone and closing the special contacts (Test Point) on the board, or using special ADB commands if debugging was enabled.
But in recent years, Xiaomi's policy has changed, requiring an authorized Mi Account with a Global or Regional access level to run firmware in EDL mode, and making EDL a paid and accessible method for service centers.
If you do decide to use this method, you will need the Mi Flash Tool and the correct firmware in.tgz (Fastboot) format, not.zip (Recovery).
1. Install Qualcomm HS-USB QDLoader 9008 drivers.
2.Put the phone in EDL mode (black screen, Device Manager sees COM- port).
3. Launch the Mi Flash Tool on behalf of the administrator.
4. Choose the path to the unpacked firmware.
5. Press the "Flash All" button for complete cleaning and flashing.⚠️ Note: Use of unverified firmware from dubious sources in mode EDL It can lead to “bricking” of the device, which cannot be restored software.
💡
Use only the originals. USB-Cheap charging cables often don’t have data lines, leading to connection errors in the Mi Flash Tool.
Use of ADB and Fastboot commands
For advanced users, the Android Debug Bridge (ADB) toolkit is a powerful way to interact with the operating system, and if USB debugging is enabled on your phone, you can try to delete the files that block activation or reset the settings via the command line.
You need to install Platform Tools on your computer to work. Once you have your phone debugging enabled, you can type in different commands on the command line, for example, to reboot to recovery mode, you use the adb reboot recovery command, and to go to fastboot, you use the adb reboot bootloader.
Some users try to use commands to remove system packets that are responsible for checking an account, an example of which may look like deleting a packet via pm (package manager), but on modern versions of Android this requires root rights, which cannot be obtained with a blocked bootloader.
However, you can check the lock status through Fastboot.
fastboot oem device-infoIf Device unlocked is false, then the bootloader is closed. You can't change this value without an official unlock token through standard commands.
💡
The ADB/Fastboot command line is a powerful tool, but without the unlocked bootloader or debugging enabled, its capabilities are severely limited.
Frequent mistakes and ways to solve them
When you unlock, you often encounter error codes, and one of the most popular is error 10008 or error 10006 in the Mi Unlock Tool, which means that the account is not tied to the device or has not passed the required latency. Recheck the settings in the “For Developers” menu and status SIM-map.
Another common problem is drivers. The computer may not see the phone in Fastboot mode. In Device Manager, this will appear as "Unknown Device" or "Android." You need to manually update the driver, indicating the path to the folder with Xiaomi or Google USB drivers.
Also, there is a "Couldn't verify device" error, which occurs if the Mi Unlock Tool version does not match the device region or the firmware version is too new / old, in which case you should try the older version of the unlock utility or update the firmware to the latest stable version through the update menu.
- 🔌 The problem is USB: Use the ports. USB 2.0 on the back of the PC, avoid front ports and USB-hub.
- 🔋 Discharge: If the phone runs out during the firmware process, it can go into a deep reboot cycle.
- 🌐 Antivirus: temporarily disable antivirus and firewall, they can block the connection of the utility to the server.
If nothing works, it may be a hardware problem, damage to memory or plumes may mimic a software failure, requiring a diagnosis at a service center.
Can I unlock my phone without a computer?
Data prevention and security
To avoid future problems, always untie your account before selling or transferring your device. Go to your Mi Account settings and click “Off” and then complete a full reset. This ensures that the new owner doesn’t encounter a lock screen.
Regularly back up important data to the Mi Cloud or your computer. Unlocking the bootloader and many recovery methods always result in the complete removal of user information. Having a backup will save your photos and contacts.
Don’t download firmware and utilities from unverified forums. Official sources include miui.com or trusted resources like Xiaomiui.net. Using modified tools carries the risk of malware that could steal your passwords.