Unlocking Xiaomi bootloader for firmware: a complete guide with error solutions

Unlocking the Xiaomi bootloader is a must for custom firmware installation, superuser rights or device recovery after software failures. The procedure requires not only technical training, but also an understanding of the risks, from loss of warranty to full “bricking” of the smartphone. In this article, we will discuss the official method through the Mi Unlock Tool, alternative methods for older models, as well as typical errors and their solutions.

Important: since 2023, Xiaomi has tightened its unlock policy, and new devices (such as the Redmi Note 12 or Xiaomi 14) require a 7+ day account binding, and some models (such as the POCO F5) generally block unlocking through standard tools, and we have taken these changes into account and adapted the instructions to meet current requirements.

Why do I need to unlock the Xiaomi bootloader?

The factory bootloader Xiaomi blocks:

• 🔧 Installation of custom firmware (LineageOS, Pixel Experience, MIUI Pro and others.)
• 🛠️ Getting root rights through Magisk or SuperSU
• 🔄 Restore the device via Fastboot or EDL after major disruption
• 📱 Use of alternative cores and modifications (for example, to overclock the processor or improve autonomy)

Without unlocking, you are limited to official updates via OTA, even if they contain critical software (for example, on some Redmi 10 models, the official MIUI 14 firmware blocks working with banking applications due to an outdated security certificate).

Preparation of the device: 5 mandatory steps

Before unlocking, follow these steps to avoid errors:

Link your Mi Account to your device (minimum 7 days of active use) |

Enable USB debugging in Settings → About Phone → MIUI version (shap 7 times)|

Activate OEM-unlocking → Additionally. → For developers|

Download the latest version of Mi Unlock Tool (from the official Xiaomi website |)

Create a backup of data (unlocking erases everything!)-->

Beginning in 2026, Xiaomi requires that the device be actively used with an account tied for at least 168 hours (7 days). Simply adding an account in 5 minutes will not work – the system tracks real time. If you bought the phone “hands-on”, make sure that the previous owner untie your account in Settings → Accounts → Mi Account.

⚠️ Attention: On Xiaomi models 13T, Redmi Note 12 Pro+ A new account binding can take up to 30 days due to the enhanced security of HyperOS. Check the current requirements for your model on the forum. XDA Developers.

Unlocking with Mi Unlock Tool

This is the safest way Xiaomi has approved.Suitable for most models, Released after 2017.

1. Download Mi Unlock Tool from the official website (the version must match the region of your Mi Account).
2. Run the utility on behalf of the administrator (important for Windows 10/11).
3. Sign in with the same account that is linked to the phone.
4. Put the phone in Fastboot mode: turn it off, then press Volume Down + Power for 10 seconds.
5. Connect your phone to your PC through the original USB-cable (use the port) USB 2.0 for stability).
6. In the utility, press Unlock and confirm the action. The process will take 1-3 minutes.

If it goes well, you'll see a message saying "Unlocked successfully." The phone will automatically reboot and reset to factory settings.

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If the Mi Unlock Tool is 0xc000007b, install Microsoft Visual C++ 2015-2022 and restart your PC.

Alternative methods for older models

If the official method doesn’t work (e.g. for Redmi 4X, Mi 5 or other devices before 2017), try:

• 🔓 EDL-Emergency Download Mode – requires an authorized Xiaomi account and a special cable.
• 📱 Fastboot commands – manual unlocking via fastboot oem unlock (not working on all models).
• 🛠️ Patch firmware – some custom recovery (e.g. OrangeFox) lets you bypass the lock, but it’s risky.

For EDL-will require:

1. USB-to-UART cable or special cable EDL-cable (you can make yourself by closing contacts on the board).
2. MiFlash or QFil utility.
3. Firmware file in.mbn format for your model.

⚠️ Attention: Use EDL Xiaomi without authorization can lead to a complete lock IMEI. On new models (after 2020), this method only works with official permission from the manufacturer.

What to do after unlocking?

After successful unlocking:

1. Install custom recovery (such as TWRP or OrangeFox) via Fastboot: fastboot flash recovery twrp.img fastboot boot twrp.img
2. Make a full backup through recovery (Backup section), including EFS (contains IMEI!).
3. Sweat custom firmware or get root rights through Magisk.

To install Magisk:

1. Download the latest Magisk.apk from GitHub.
2. Rename the file to Magisk.zip.
3. Upload it via TWRP to the Install section.

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Once root rights are obtained, some features may stop working (like Google Pay or banking apps).Use Magisk modules like SafetyNet Fix to get around the restrictions.

Typical errors and their solutions

Even if you follow the instructions, you can have problems.

If the phone stops turning on after unlocking (black screen, vibration without image), try:

• 🔌 Hold the Loud up. + 20 power.+ second-on-seconds.
• 📥 Swipe fastboot firmware through MiFlash (select file) flash_all_lock.bat lock-back).
• 🛠️ Contact the service center if the problem is hardware (e.g. damaged eMMC memory).

Xiaomi models with special unlocking requirements

Some devices have unique limitations:

• 📱 Xiaomi 12T/13 Series: Demanded 30-Daily account binding and confirmation through SMS.
• 📱 POCO F4/F5: Block unlocking if the device is purchased in regions with limited policy (e.g. India).
• 📱 Redmi Note 10 Pro (sweet): Has an anti-rollback bug that causes the firmware to be MIUI 13+ Can lock the bootloader permanently.
• 📱 Mi 11 Ultra (star): Require additional confirmation via the Mi Unlock Status app in the settings.

Before unlocking, check your model on the XDA or 4PDA forums. For example, for the Redmi Note 9 Pro (joyeuse), there is a separate theme with current workarounds.

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For models running a MediaTek processor (e.g. Redmi 10C, POCO M4 Pro), unlocking via Fastboot is often impossible. Use the SP Flash Tool with an authorized authentication file.

FAQ: Frequent questions about unlocking Xiaomi