Unlocking Xiaomi bootloader after brick: a complete guide with error solutions

If your Xiaomi smartphone has turned into a “brick” after a failed firmware, reset or manipulation with the bootloader, do not rush to panic. In 90% of cases, the device can be brought back to life – even if it does not turn on, does not respond to buttons or hung on the Mi logo. The main problem is a blocked bootloader that does not allow you to install custom firmware or restore stock.

In this article, we will discuss all the current ways to unlock a bootloader on Xiaomi in 2026, including the official method through the Mi Unlock Tool, bypassing restrictions for devices with an account binding, as well as alternative solutions for soft and hard bricks.

One wrong action can make things worse, so read each step carefully and check if the method is compatible with your Xiaomi, Redmi or POCO model.

1. Diagnostics: What type of brick does your Xiaomi have?

Before you start unlocking, you need to determine which brick you are dealing with, and the choice of recovery method depends on this:

• 🔄 Soft brick – the device is turned on but only loaded to the logo Mi/Redmi, It's stuck on the screensaver or it's cyclically rebooted. It's responding to the backlight, it's vibrating.
• 🧱 Hard brick: The phone shows no signs of life: black screen, no vibration, no computer detection, often after a broken firmware through fastboot.
• 🔒 Brick with locked bootloader – the device can be loaded into fastboot, but when you try to flash it gives an error device is locked or anti-rollback.

For diagnosis, connect your phone to your PC and check the reaction:

• If a computer makes a USB connection sound, but an unknown device appears in Device Manager (for example, Qualcomm HS-USB QDLoader 9008) – this is a hard brick.
• If the phone is defined as Android Bootloader Interface, it is a soft brick with a locked bootloader.

⚠️ Note: If your Xiaomi doesn’t respond to the power button and isn’t detected by the PC even after holding on to Power + Vol Down in 30 seconds, the cause may be damage to the hardware (for example, a burned-out eMMC chip.

2. Official unlocking of the bootloader via Mi Unlock Tool

The most reliable and recommended way Xiaomi uses is the official Mi Unlock Tool, but it has limitations:

• ⏳ Requires the binding of the Mi Account to the device (if not done in advance – you will have to wait 7-30 days).
• 📱 It only works for devices that can boot into fastboot (soft brick).
• 🔄 On some models (for example, Redmi Note 12 or POCO X5) Pre-authorization from Xiaomi is required through the feedback form.

Step-by-step:

1. Download the latest version of the Mi Unlock Tool (only from the official website!). Install the program on PC.
2. Download the phone to fastboot mode: turn off the device, then press Power + Vol Down before the bunny with the inscription FASTBOOT appears.
3. Connect Xiaomi to your PC through the original USB-cable (preferably port) USB 2.0 on the back of the system unit).
4. Launch the Mi Unlock Tool on behalf of the administrator. Sign in to the same Mi Account that was linked to the phone.
5. The program will automatically detect the device. Press Unlock and wait for the process to complete (usually takes 1-5 minutes).

If you have a Couldn't unlock error, wait for 168 hours, you're not linked to the device in advance.

• Connect your phone to the Internet (via the Internet) SIM-map or Wi-Fi) and log in to Settings → Mi Account.
• Activate the O option.EM-unlocking in Settings → For developers.
• Wait 7 days (168 hours) and then try again.

Linking your Mi Account to your device|Turn it on. OEM-unlock|Install the Mi Unlock Tool|Prepare original USB-cable|Check the battery charge (minimum 50%)

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⚠️ Attention: On Xiaomi models 13/14, Redmi K60 Xiaomi has introduced additional verification through SMS-If the code request doesn't come, try using it. VPN India or Indonesia.

3. Alternative Unlocking Methods Without Waiting

If you can’t wait 7 days or the device isn’t identified in the Mi Unlock Tool, you can try workarounds.These methods are informal and can lead to loss of warranty or complete loss of data, but often save in desperate situations.

Method 1: Use of the EDL-mode (for Qualcomm)

Many Xiaomi smartphones on Qualcomm processors (for example, Redmi Note 10/11, POCO X3) support EDL (Emergency Download Mode), which allows you to flash the device bypassing the locked bootloader.

• 🖥️ PC with installed QDLoader drivers HS-USB.
• 📄 Firmware in.mbn or.elf format for your model.
• 🔧 Mi Flash Tool or QFil.

Instructions:

1. Turn off the phone. Press Vol Up + Vol Down and connect to the PC - the device should be identified as Qualcomm HS-USB QDLoader 9008.
2. Download the firmware for your model from the Xiaomi Firmware Updater website (choose the Fastboot version).
3. Unpack the firmware and launch the Mi Flash Tool. Select the firmware folder and press Refresh, the program must detect the device.
4. At the bottom, select Clean All (complete clean) or Clean All and Lock (if you want to lock the bootloader back).
5. Press Flash and wait until it is completed (the process can take 5-15 minutes).

Method 2: Test Point bypass (for Mediatek)

Mediatek chip-powered devices (e.g., Redmi 9A, POCO C31) can be unlocked through test point, a special pin on the motherboard, which requires disassembling the phone and is only suitable for advanced users.

Step-by-step:

1. Remove the back of the phone and find a test point (usually signed as TP or marked with an arrow). Each model is different – look for schemas on the 4PDA or XDA forums.
2. Close the test point with tweezers or a needle, simultaneously connecting USB-The device must be defined as Mediatek Preloader.
3. Use the SP Flash Tool to firmware stock firmware in Format All + Download mode.

4 Unlock the bootloader on a brick without access to fastboot

If your Xiaomi doesn’t boot even in fastboot (black screen, no button response), but is defined as an unknown device by the PC, you can try the following methods:

Method 1: Automatic recovery with Mi Assistant

Mi Assistant (formerly Mi PC Suite) can sometimes “resuscitate” devices with damaged firmware:

1. Download Mi Assistant from the official website.
2. Connect your phone to your PC and start the program. If the device is identified, select System Restore.
3. Follow the wizard's instructions. The software automatically downloads and installs the stock firmware.

Method 2: Firmware through 900E/9008 modes (for Qualcomm)

If the phone is defined as Qualcomm HS-USB QDLoader 9008, it can be manually flashed:

• 📌 Download firmware in.mbn format for your model (for example, with a XDA).
• 🔧 Use the QFil or Mi Flash Tool in mode EDL.
• ⚡ Choose your firmware file carefully – an incorrect version can lead to a permanent brick!

Method 3: Hardware reset via test point (for Mediatek)

If the phone on Mediatek does not respond to buttons, but there is physical access to the board:

1. Find the CLK and DAT contacts on the motherboard (usually next to the battery).
2. Close them for 5-10 seconds, then plug them in. USB-cable.
3. The device should be defined as Mediatek Preloader – then sew the stock firmware through the SP Flash Tool.

⚠️ Note: Xiaomi models with a chip Mediatek Helio G95/G96 (For example, Redmi Note 10S, POCO X3 GT) After you've run through the test point, Secure Boot's protection can go off, and the phone will turn into a permanent brick! 5. When unlocking a bootloader or Xiaomi firmware, errors often occur. We have collected the most common and ways to fix them: Error Reason Solution Couldn't unlock. Wait for 168 hours Mi Account is not tied to the device Link account in the phone settings and wait 7 This device is locked bootloader is locked and Mi Unlock Tool is not working EDL-Anti-rollback check fail try to flash an older version of firmware Find firmware with the same or newer anti-rollback index Invalid image format Wrong firmware format Download firmware in.tgz or.zip for Mi Flash Tool Device not found Drivers installed or the cable is faulty Install drivers ADB/Fastboot Or QDLoader, try another cable If you see an Anti-rollback error, it means you're trying to install a firmware with a lower security index than the current one.The only solution is to find firmware with the same or higher index (for example, if the current anti-rollback is a firmware with a lower security index).=4, The new firmware should be anti-=4 anti-=5). The list of indexes for each model can be found on the forums 4PDA or XDA. Couldn't unlock (168 hours wait)|This device is locked|Anti-rollback check fail|Device not found (not defined by PC)|Another mistake. --> 6.Recovery after successful unlock After unlocking the bootloader and firmware device, several steps must be taken to return Xiaomi to working condition: 🔄 Reset to factory settings: Even if the phone has booted, do reset via Settings → Additionally. → Recovery and reset to avoid conflicts with previous firmware. 🔒 Re-lock bootloader (optional): If you don’t plan to install custom firmware, lock the bootloader back through fastboot oem lock for security. 📱 Firmware Update: After Restore, Check for Updates in Settings → The phone. → Updating the system. 🔐 Change Mi Account: If your device was linked to an old account, log in to a new one to avoid problems with the next reset. If the phone doesn't turn on or reboots cyclically after the firmware is done: Try flashing another firmware version (e.g. Global instead of China). Check if the option is not included. OEM Lock in fastboot (fastboot getvar all and find the unlocked: yes line). If the screen isn't working, but the phone is vibrating, the problem may be in the display driver). 💡If the phone is not identified in the Mi Unlock Tool after unlocking the bootloader, try connecting it to another one. USB-port (preferably) USB 2.0) or use a charging cable from Xiaomi. Sometimes it helps to disable the antivirus or Windows firewall. 7. When unlocking is impossible: hardware causes of bricks Not always "brick" is caused by software errors. If none of the methods worked, maybe the hardware problem is: 🔋 Damage. eMMC/UF — The memory chip is out of order (often found after interrupted firmware) Signs: phone is not detected in any mode, no response to charging. 🔌 Short circuit on the board - can occur due to moisture or mechanical damage. 📱 CPU or memory malfunction - if the phone fell or overheated, chips could have been damaged.Signs: the device is defined as Qualcomm 9008, But the firmware doesn't work. In these cases, the software is powerless, it requires repairs at the service center. 3 000 before 8 000 ruble. Repair of board (sweetening of chips) - from 5 000 before 15 000 Diagnosis - usually free or up to 1 000 Before you bring your phone to the service, try the last tool — firmware through Box equipment (for example, UFi Box or EasyJTAG), these devices allow you to restore even phones with damaged firmware at the hardware level, but are expensive and require skills. FAQ: Frequent questions about unlocking Xiaomi Can you unlock the bootloader on Xiaomi without waiting? 7 Yes, but only if the Mi Account was tied to a brick-and-mortar device. If it wasn't, you'd have to wait. Alternative methods (e.g., "Mi, EDL Or test point, you can flash your phone without unlocking the bootloader, but you can't completely unlock it. What if the Mi Unlock Tool can't see the device? Check this: Are drivers installed? ADB/Fastboot (Download from the Android site). Do you use the original cable (poor cables may not transmit data) Is the phone connected to the port? USB 2.0 (port USB 3.0 Sometimes it doesn't work. Is the mode activated? OEM Unlock in the developer settings. If nothing works, try another PC or virtual machine with Windows. 10/11. How to know if the bootloader is unlocked on Xiaomi? Turn off the phone and boot to fastboot (Power) + Vol Down. Connect to your PC and execute the command: fastboot oem device-info If the output line is Device unlocked: true - the bootloader is unlocked. If false - locked. Can I unlock the bootloader on Xiaomi with a damaged screen? Yes, if the phone is detected in fastboot or EDL. The key is to have your Mi Account tied in advance, so if the screen is not working, but the sensor is responding, you can connect your mouse through the phone. OTG-navigational adapter. What if you don't unlock your phone? Possible causes and solutions: Wrong firmware -- run the version that matches your model and region. Damaged sections -- clean up the entire device in the Mi Flash Tool. Anti-rollback conflict -- find firmware with a compatible anti. Hardware malfunction -- if nothing works, go to the service.