When Xiaomi is found in a public place or inherited from acquaintances, it often puts the user in a serious technical obstacle: After turning the device on or forced to reset it through Recovery Mode, the screen is blocked by an activation screen that requires the previous owner to enter a password from the Mi Account, a standard anti-theft feature called Find Device, which binds the smartphone to the owner's account at the company server level.
Without removing this anchor, the device becomes a brick with limited functionality, even preventing emergency calls. There are two fundamentally different lock scenarios: software lock bootloader and account lock (Mi Account Lock).
In this article, we will discuss legal and technical ways to solve the problem if you are the owner of the device or have the right to do so, and it is important to understand that bypassing locks without the previous owner often requires complex software manipulation and sometimes complete soldering of memory, which is almost impossible at home.
β οΈ Attention: All actions to unlock the bootloader or reset the account you perform at your own risk.Incorrect interference in system partitions can lead to complete loss of warranty and inability to restore the device.
Diagnostics of the type of blocking: what exactly restricts access
The first step is always to determine the exact nature of the restriction. If the Mi Account logo is displayed on the screen with a request to enter a password, this means that the search function is activated on the device. In this state, it is useless to try to reflash the phone using standard methods - after a reboot, the lock will return, since the status is checked online when you first connect to the network.
Another type of restriction is a locked bootloader. When you try to enter Fastboot mode, you'll see a picture of a hare repairing an android and a sign saying Locked. It doesn't give you access to low-level debugging tools, but it doesn't usually interfere with your phone if you know the unlock password. The problems begin if you want to install Global's Russified firmware on the Chinese version of the device.
To check the status of the bootloader, you can use the command in Fastboot mode by connecting the phone to the PC. In the command line, type: fastboot oem device-info. The system will give a response where the Device unlocked parameter will be false or true. This is the key point for understanding the next steps.
Official method of unlocking the bootloader through Mi Unlock
If your goal is to have full access to the file system to install custom backup or firmware, you'll need to unlock the bootloader.The official method from Xiaomi is the safest, but it takes time, USB-cable and stable internet connection.
The process starts with the account linking. Go to your phone settings, select Developer's section and click Mi Unlock Status. You log in and click Add Account and Device. Then you create a record on the server, and the waiting time countdown begins, which is usually 168 hours (7 days).
After a week, you need to download the Mi Unlock Tool to your computer. When you start the program and log in to the same account, put your phone into Fastboot mode and plug it in. Press Unlock. The utility will warn you about the loss of all data - this is an inevitable security step.
βοΈ Checklist for unlocking the loader
Importantly, unlocking the bootloader does not remove the Mi Account lock if it is installed. These are two independent security systems. Unlocking the bootloader through the official tool automatically performs full Wipe Data, removing all photos, contacts and applications.
Scenario with the found device: actions when blocking Mi Account
When a device is found and locked by an account, it's the most difficult thing. Find Device locks work at the server level. Even if you completely erase your phone's memory through Recovery (Wipe Data), the first time you connect to Wi-Fi, the phone will contact Xiaomi's server, recognize its IMEI and request a password again.
The only guaranteed way to unlock this device is to contact the previous owner, and if the phone is found, you can try to enter emergency mode and see the contacts saved on the phone. SIM-card (if any), or use a voice assistant if activated on a locked screen to ask for a number to contact the host.
There are service centers that can unblock if you have documents that confirm your purchase (check, box with IMEI). If you found the phone and can not find the owner, but want to keep the device for yourself, there is no technically legal way to remove Mi Account without a password. Any "bugs" through a date change or DNS are temporary security holes that the company quickly closes in new versions of firmware.
β οΈ Warning: Buying handsets without checking for Mi Account is a huge risk.Blocking can be activated at any time if the previous owner decides to change the password or the device is reset.
Using Fastboot and EDL mode for flashing
For advanced users trying to regain access to the system, there is Emergency Download (EDL) mode, which is a low-level Qualcomm mode that allows you to flash the phone even when the system is completely broken. However, starting with certain versions of firmware, logging into EDL to record data requires an authorized account of a Xiaomi service engineer.
Attempts to flash a phone in this mode with regular firmware often end in a Firehose Auth error, which means that the server rejects the request for a record because the account does not have service-level rights. There used to be paid services that provide temporary access to such accounts, but their number is reduced and reliability is reduced.
If you have access to a disassembled phone, sometimes you can make a test point to log into the EDL without turning on your phone, and the firmware command looks something like this:
fastboot flash recovery recovery.img
fastboot rebootBut remember, if you have a Mi Account lock, simply flashing through Fastboot won't help, because your account is tied to a unique device ID in your manufacturer's database, and changing your firmware region (from China to Global) won't delete your account, but it can add new compatibility issues.
What is Firehose Auth?
Compatibility table of unlocking methods
Here is a summary of what works for different types of constraints, which will save you time and not try to use the wrong tool.
| Type of problem | Method: Mi Unlock Tool | Method: Recovery reset | Method: Service centre | Risk of data loss |
|---|---|---|---|---|
| Blocked Bootloader | Working (officially) | It's not working. | It's working. | 100% (Wipe Data) |
| Mi Account Lock | It's not working. | It's not working. | Check/box required | 100% |
| Graphical screen key | Not required | It's working (reset) | It's working. | 100% |
| FRP (Google Account) | It's not working. | It's not working. | Hardly. | 100% |
Frequent errors and technical nuances of the process
During the unlock process, users often encounter errors that put them at a loss. For example, the Couldn't verify device error in the Mi Unlock Tool often occurs due to unstable devices. USB-cable or port use USB 3.0, which sometimes conflict with drivers.It is recommended to use the original cable and ports USB 2.0.
Another common problem is time desynchronization, if the time on the phone and the server is very different, SSL-The certificates may not be validated and the phone may not be able to contact the activation server, so if you have access to the menu, you need to manually set the correct date and time.
π‘
Use only original or quality USB cables. Cheap charging cables often donβt have data lines, leading to errors when connecting to the Mi Unlock Tool or ADB.
Also worth mentioning is firmware. Installing Global firmware on a Chinese machine (CN -> Global) requires an unlocked bootloader. If you try to do this without unlocking, you get a Can't verify update error. The reverse procedure (Global -> CN) is usually blocked by a region check, and the phone simply refuses to update.
Questions and Answers (FAQ)
Can I unlock a Xiaomi found without the ownerβs password?
How long does it take to wait for the bootloader to unlock?
Will unlocking the bootloader reset the Mi Account lock?
What if Mi Unlock Tool says βUnlock failedβ?
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Unlocking the bootloader and unlocking the Mi Account are two different processes: one gives access to the system, the other confirms ownership of the device.