Owning a Xiaomi smartphone often involves wanting to gain full control of the device, whether it is installing custom firmware, obtaining superuser rights or deep modification of the system. However, the first and most important obstacle in this way is the bootloader, which is locked by default on all devices of the Chinese brand. Understanding the current status of this component is critical before any manipulation, as trying to sew the modified software on a closed bootloader can lead to serious errors or complete system failure.
Checking Bootloader status is not just a formality, but a necessary diagnostic procedure that avoids many problems in the future. Many users confuse the presence of Root rights with an unlocked bootloader, which is a misconception, because these concepts are related, but not identical. In this article, we will discuss in detail how Xiaomi’s security system marks the status of the bootloader and what tools will allow you to get reliable information about the state of your device.
There are several proven ways to know if the bootloader is locked on your Redmi, POCO Or Mi. You can use official utilities from the manufacturer, the command line through the ADB-Each method has its own characteristics, accuracy and scope, so to get a guaranteed result, it is recommended to use a comprehensive approach.
Visual diagnostics when loading the device
The fastest and easiest way to understand bootloader status is to watch the screen closely as you turn on your smartphone. When you start the device, the manufacturer's logo appears first on the display. If the bootloader is unlocked, Xiaomi's security system must alert the user with a special screen. On a black background, you will see an image with an open lock and the words "Unlocked", often accompanied by a warning about potential security risks.
If you turn on only the Mi or Redmi logo, which goes directly to the lock screen or the system screensaver, it is likely that the bootloader is closed. However, you should not rely solely on visual inspection, since in some cases, especially after flashing the Global stock shell on the Chinese version of the device, the unlock screen can be hidden or modified.
Importantly, having an Android logo with a red bezel or "Warning" label also indicates interference with the software part, but does not always guarantee that the bootloader is officially unlocked through Xiaomi servers. Sometimes this is a sign of an installed custom recovery or modified boot image, while Bootloader itself can formally remain closed to write new partitions.
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If you see a screen with a lock but don’t remember how you unlocked the device, check your Mi Account history for unlock requests.
Checking status with Fastboot and Mi Unlock Tool
The most reliable method that all repair and modification specialists use is Fastboot.This low-level diagnostic mode is built into every smartphone based on Qualcomm and MediaTek processors and allows you to get direct information from the device controller. To begin the check, you need to turn off your smartphone and pinch the Volume Down + Power key combination before an image with a rabbit fixing an android appears.
After entering the Fastboot mode, connect your smartphone to your computer using high-quality USB-Next, you need to run the official Mi Unlock Tool utility, pre-authorized in the same Mi Account that is associated with the device, the program automatically reads the data from the phone and displays the current status in the main window. If the bootloader is locked, you will see the appropriate warning and an offer to unlock the device.
If the bootloader is already unlocked, Mi Unlock will report it with the phrase "Your device is currently unlocked" or similar. This method is good because it does not just read the flag, but checks its validity through the company's servers. However, it is worth remembering that the utility requires a stable Internet connection and installed Qualcomm or ADB drivers on the system.
☑️ Checking through Fastboot
⚠️ Attention: Fastboot does not allow you to use your phone in normal mode. To exit, just press the Power button on the phone. 10-15 seconds until the device vibrates and restarts.
Using ADB commands to obtain information
For advanced users who prefer to work with the command line, Android Debug Bridge (ADB) will be an excellent tool. This method allows you to get detailed information about the state of partitions and the bootloader without having to run heavy graphics utilities. First, make sure that the smartphone has USB debugging enabled in the “Developers” menu, and connect the device to the PC in normal operation.
Open the command line or terminal in the folder with ADB installed and enter a command to check communication with the device. Once access is confirmed, you can request bootloader status directly. Although there is no direct command for all versions of Android, indirect signs or specific fastboot commands in ADB mode can give an answer. Often a bootloader transition command is used for visual verification.
adb reboot bootloaderOnce you do this, the phone will reboot to Fastboot mode, where you can see the status on the screen or in the console logs (if you connect via fastboot devices), and in fastboot mode on your computer, you can type in the fastboot command getvar all, which will display a huge list of variables. Look for the line (bootloader) unlocked: yes or no. This is the most technically accurate way to eliminate any software errors in the interface.
What if your computer can’t see your phone in ADB?
Menu Analysis "For Developers"
There is a dedicated menu for debugging and testing in the MIUI and HyperOS settings, and to get there, you need to click on the build number several times in the About Phone section. In the Developer menu that opens, you can often (but not always) find "Mi Unlock Status" or "Trackloader Status."
If this menu displays the status of "Unlocked" or "Unlocked", then there can be no doubt, but if there is no item or it shows "Blocked", this does not give a 100% guarantee, since some custom firmware can hide or fake this data in the interface, so this method is better used as an additional check, not a basic one.
Also in this section, you should pay attention to the point OEM-If this switch is active and pressable, it's a good sign, but it only allows unlocking, not confirming its current state.
Comparison of status verification methods
Once you've figured out the basic ways, it's helpful to organize information to make the best choice for your situation. Different methods require different conditions: a PC, a cable, access rights, or just a close look at the screen. Below is a table comparing the effectiveness and complexity of each of these methods.
| Method of verification | Equipment required | precision | Difficulty |
|---|---|---|---|
| Visual (load screen) | No. | Medium | Low. |
| Mi Unlock Tool | PC, USB-cable | Tall. | Medium |
| ADB/Fastboot Teams | PC, USB-cable, drivers | Maximum | Tall. |
| I'm a developer. | No. | Low. | Low. |
As you can see from the table, using the Mi Unlock Tool or fastboot commands gives the most objective picture. The visual method can let you down if the bootlogo has been changed, and the menu in the system can be hidden by firmware. So for critical operations, always use a bundle of PC and cable.
Possible risks and consequences of unblocking
Before you go from status check to active unlock, you need to be clear about the consequences of this action. Unlocking the bootloader on Xiaomi devices leads to irreversible changes in the security system. First of all, it is a complete reset of all data from the internal drive, so having an up-to-date backup is a must.
In addition to data loss, the unlocked bootloader makes the device more vulnerable to malware, as it removes the signature verification of the downloaded operating systems. Also, some banking applications and services using Google Pay or Mi Pay may refuse to work or require additional manipulation of security modules (Magisk Hide, Zygisk), which does not always guarantee stability.
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Unlocking the bootloader voids the software warranty and makes the device theoretically less secure from remote attacks.
Another important aspect is the “Find Device” function, which may not work properly after unlocking and flashing, making it harder to lock a smartphone if it is lost, and the process of officially unlocking via Xiaomi servers requires a 7 to 30 day wait, depending on the company’s and region’s current regulations.
⚠️ Note: When unlocking the bootloader, the Widevine protection mechanism L1 may degrade to a level L3, This will result in loss of viewing content in HD/4K quality in streaming services such as Netflix.