The blocked bootloader on Xiaomi smartphones is one of the most common problems users face when trying to install custom firmware, obtain root rights, or even simply restore the device after a failure. The company deliberately blocks the bootloader on all modern models (beginning with the Mi 5 and later) for security reasons, but this creates serious limitations for enthusiasts and developers.
In 2026, the procedure for unlocking became more complicated: Xiaomi tightened the requirements for Mi Account accounts, introduced additional checks on binding. SIM-The maps have limited the number of unlocks per month, but it is still possible to circumvent these restrictions, both by official methods through the Mi Unlock Tool, and by alternative methods for devices with outdated firmware versions or hardware vulnerabilities. In this article, we will analyze all current methods, their risks and nuances for different Redmi models, POCO mi.
We warn you right away: unlocking the bootloader will void the warranty, can lead to data loss and in rare cases - to a "brick" of the device (complete inoperability). If you are not sure of your actions, it is better to contact specialists.
Why Xiaomi is blocking the bootloader and what restrictions it imposes
The main reason for blocking the bootloader is to protect against unauthorized access to system partitions.
- 🔓 Install custom firmware (such as LineageOS or Pixel Experience) that may contain vulnerabilities.
- 🛡️ Getting root rights that open access to system files and increase the risk of malware infection.
- 🔄 Restore the device via Fastboot or EDL without proof of ownership.
- 📱 Flashing the device through informal tools (for example, SP Flash Tool or QFil).
In practice, blocking means you won’t be able to:
- ⚙️ Install TWRP ornamental.
- 📲 Swipe your device through fastboot flash without first unlocking.
- 🔧 Restore the phone after a “soft breeze” (locked boot, system errors).
- 🔄 Return to the older version of the firmware (downgrade).
Since 2023, Xiaomi has also introduced additional restrictions:
- 📅 Mandatory binding of Mi Account to device for 72 hours before unlocking.
- 📱 Restriction on the number of unlocks: no more than 1 device per month for new accounts.
- 🔒 Unlocking for devices with unofficial firmware or modified boot partition.
⚠️ Note: On Qualcomm processor devices (e.g. Redmi Note 12 Pro)+, POCO F5) Once unlocked, the bootloader may trigger Anti-Rollback Protection, a mechanism that blocks the installation of older firmware versions!
Unlocking with Mi Unlock Tool
The most reliable and recommended method Xiaomi uses is the Mi Unlock Tool, which is suitable for most modern devices (2018-2026), but requires strict conditions.
Requirements for official unlocking:
- 📱 Device on official firmware MIUI (customless!).
- 🔑 Mi Accounts tied to your device for at least 72 hours.
- 📶 Active Internet connection (Wi-Fi or mobile network).
- 🔌 Battery charge of at least 60%.
- 🖥️ Windows computer (7/10/11) and installed Xiaomi drivers.
Step-by-step:
- Download the latest version of the Mi Unlock Tool from Xiaomi’s official website.
- Turn on the phone Developer Mode: go to Settings → About Phone → MIUI version and tap 7 times on the build number.
- In Settings → Additional → For developers, activate OEM-unlocking and debugging over USB.
- Connect your phone to your PC, select File Transfer (MTP) mode.
- Launch the Mi Unlock Tool and log in to the same Mi Account as your phone.
- Follow the instructions of the program. The device will restart in Fastboot, after which the unlocking process will begin (usually takes 1-5 minutes).
If the process is successful, you'll see a message that's Unlocked successfully. You can now install custom firmware or TWRP.
Download Mi Unlock Tool from the official website|Enable the developer mode|Activate OEM-unlocking USB|Link Mi Account to your device for 72 hours|Charge your phone to 60% or more-->
⚠️ Note: If the Mi Unlock Tool gives you a “Couldn’t unlock” or “Device not supported” error, it may mean that your device is blacklisted (for example, after previous attempts to unlock) or requires you to update your firmware to the latest version.
Alternative Unlocking Methods (for Locked Devices)
If the official method does not work (for example, due to Mi Unlock Tool errors or account limitations), alternative methods can be tried.
1. Unlocking through EDL (Emergency Download Mode)
Regime. EDL It allows you to flash the device at a low level, bypassing the bootloader lock. It only works on devices with Qualcomm processors (for example, the Redmi Note 10 Pro, POCO X3 Pro).
What you need:
- 🖥️ Windows PC and Qualcomm Drivers Installed HS-USB QDLoader 9008.
- 📂 Firmware in.mbn or.elf format for your model.
- 🔧 Tools: Mi Flash Tool or QFil.
- 🔌 Cable USB Type-C (preferably original).
Instructions:
- Turn off the phone.
- Press the buttons Volume up + Volume down and connect the cable USB The device should be identified as Qualcomm. HS-USB QDLoader 9008.
- Start the Mi Flash Tool, select the firmware and press Flash.
- Wait until the process is completed (it can take up to 10 minutes).
After the firmware, the bootloader will be unlocked, but there is a risk of loss IMEI or other hardware problems!
What if the phone is not included in the EDL?
2. Exploits for old firmware (up to) MIUI 12)
On some devices with firmware older MIUI 12 (e.g. Redmi Note 8 Pro, Mi) 9T) One of the most famous exploits is fastboot oem unlock-go.
How it works:
- Turn the phone into Fastboot mode (turn off, then pinch Power + Volume down).
- Connect to the PC and execute the command: fastboot oem unlock-go
- If the device supports this command, the bootloader unlocks without checking the account.
List of devices on which this method can work:
| Model | Processor | Version. MIUI (max.) |
|---|---|---|
| Redmi Note 7 | Qualcomm SDM660 | MIUI 11 |
| Mi 9T | Qualcomm SDM730 | MIUI 12.0.3 |
| POCO F1 | Qualcomm SDM845 | MIUI 12.0.6 |
| Redmi Note 8 Pro | Mediatek Helio G90T | MIUI 11.0.8 |
⚠️ Note: On devices with Mediatek (such as the Redmi Note 8 Pro), unlocking through exploits can cause data loss in the section NVRAM, What will cause problems with Wi-Fi and Bluetooth!
Unlocking on New Devices (2023–2026)
On modern Xiaomi smartphones (for example, Redmi Note 13 Pro)+, Xiaomi 14, POCO F6) Unlocking the loader has become more difficult because of:
- 🔒 Anti-Rollback Protection (ARB) — block the rollback of old firmware.
- 📱 Bindings SIM-Maps – Some models require inserted SIM-The operator card with which the device was activated.
- ⏳ Increased latency – now you need to wait up to 7 days for new accounts instead of 72 hours.
Bypassing restrictions on new devices:
- Use the "old" Mi Account. Accounts created before 2022 have fewer unlock restrictions.
- Switch through the authorized Mi Account. Some Xiaomi service centers may provide temporary access to authorized accounts (paid).
- Update your firmware before unlocking. On some models (e.g. Redmi) K60) Unlocking is only possible on the latest version. MIUI.
- Try alternative tools. For example, XiaomiTool. V2 or MTKClient (for devices on Mediatek).
For devices with HyperOS (new firmware from Xiaomi, which replaced the new version) MIUI In 2026, the unlocking process remains similar, but requires the use of an updated version of the Mi Unlock Tool (at least 6.5.424.24).
1. Reconnect the account in the phone settings (Settings) → Xiaomi account → Security).
2 Wait another 24 hours after the tether.
3. Use another account (preferably created before 2023).-->
Risks and Possible Problems After Unblocking
Unlocking a bootloader is always a trade-off between freedom of action and security.
1. Loss of warranty.
Xiaomi officially declares that unlocking the bootloader will void the warranty, but some service centers may turn a blind eye if the problem is not related to firmware (for example, a broken screen).
2. Security vulnerabilities.
Once unlocked, the device becomes more vulnerable to:
- 🕵️♂️ Attack through ADB (if debugging is on).
- 📲 Installation of malicious firmware (for example, with fake ones) boot.img).
- 🔓 Data theft when physically accessing the device.
3. Hardware malfunctions.
Incorrect firmware can lead to:
- 📵 Poose. IMEI (no net).
- 🔋 Problems with charging (for example, constant overheating).
- 🎵 Non-functioning speakers or microphone.
- 📱 Full "brick" (the device does not turn on).
4. Update issues.
On unlocked devices:
- 🔄 OTA-Updates may not be installed (manual firmware required).
- 📦 Certain functions MIUI/HyperOS It can work incorrectly (e.g. Game Turbo or Second Space).
💡
If after unlocking the phone stopped catching the network, check IMEI If it is missing or replaced by 00000000, you will need to restore through QCN-File (for Qualcomm only).
What to do if the bootloader is blocked after a failed unlock
If something goes wrong during the unlock process (for example, a PC connection is interrupted or an error occurs in the Mi Unlock Tool), the device can:
- 🔄 Getting fixated on the logo MI or Fastboot.
- 📵 Not to be turned on at all (black screen).
- 🚫 Error "This device is locked" when trying to firmware.
Recovery methods:
1.Retry through the Mi Unlock Tool.
Sometimes it is enough to repeat the unlocking process.
- The Mi Account is linked to the device.
- The phone is 100% charged.
- Used by the original USB-cable.
2. Firmware through Fastboot.
If the device is loaded into Fastboot, but the bootloader is locked, you can flash the official firmware without unlocking:
- Download Fastboot firmware for your model from MIUI Downloads.
- Unpack the archive in a folder on your PC.
- Run the script. flash_all.bat (for Windows or flash_all.sh (for Linux/Mac).
3. Recovery through EDL (for Qualcomm).
If the device does not respond, try flashing it in mode. EDL (This will require, as described in the section above:
- The firmware file is in.mbn format.
- Qualcomm Drivers and Mi Flash Tool
4. Contact the service center.
If nothing helps, you just have to carry the device to the service. The cost of unlocking the bootloader in the official centers of Xiaomi is 1500-3000 rubles (2026), informal workshops can do it cheaper, but the risk of getting a brick is higher.
⚠️ Warning: HyperOS devices (2026) may be affected by Secure Boot, a mechanism that blocks any firmware attempts without official permission, and can only be restored through an authorized Xiaomi account or a replacement motherboard.