Unlocking Xiaomi bootloader: a complete guide with a guarantee of success

Why Xiaomi is blocking the bootloader and should it be unlocked?

The bootloader on Xiaomi smartphones is locked by default, a security measure designed to protect the device from unauthorized access and malware installation. However, for enthusiasts who want to install custom firmware, gain root rights or optimize the system, unlocking becomes a must-have. The process is officially supported by the company, but comes with a number of nuances: from waiting for an account confirmation to potential loss of warranty.

It is important to understand that unlocking irreversibly resets the device to factory settings – all data (photos, contacts, apps) will be deleted.+ Xiaomi 13 Ultra, after unlocking, can stop working functions like Widevine L1 (reviewer HD-content from Netflix and Disney+). Before you start, evaluate whether you really need advanced features — or if standard features are enough. MIUI.

Since 2023, Xiaomi has tightened the unlocking requirements, requiring 7 to 30 days of account-to-device binding for new models, which means that if you just bought a smartphone, you can’t unlock it right away, and the company has introduced a limit on the number of unlocks per month, no more than 3 devices per Mi Account.

Unlocking with Mi Unlock Tool

The most reliable and recommended method is to use Xiaomi’s Mi Unlock Tool, which works on most models, including the Redmi Note 11/12, POCO F5, Xiaomi 12T, and newer devices, with the main benefit of minimal bricking risks, as the process is controlled by the company’s servers.

To get started, follow the following steps:

• 📱 Link your Mi Account to your device: Go to Settings → Xiaomi account → Mi Cloud and log in. Make sure your phone has mobile internet or Wi-Fi on, and without a network connection, the tether won't work.
• 🔗 Activate the option "OEM Unlock": in Settings → The phone. → Version. MIUI Tap 7 times on the line "Version" MIUI", To turn on the developer mode. Then go back to Settings. → Additionally. → For developers and include OEM-unlocking and debugging USB.
• 🖥️ Download Mi Unlock Tool: the official utility can be found on the Xiaomi website. Make sure you download the latest version - older versions may not support new models.
• 🔌 Connect your phone to your PC: Use the original USB-cable (cheap cables can cause connection errors) Run Mi Unlock Tool on behalf of the administrator and follow the instructions on the screen.

Once connected, the utility will check if enough time has passed since the account was attached (usually 7 days for new devices). If all is well, press Unlock - the process will take 1-3 minutes.

Link Mi Account to your device|Turn it on. OEM Unlock and debugging by USB|Download the latest version of the Mi Unlock Tool|Use the original USB-cable|Disable antivirus on PC (can block the utility)-->

⚠️ Warning: If you unlock "Couldn't unlock" or "Current account is different from the account info on the device", it means that the account is not properly linked. Solution: delete the Mi Account from your phone, restart the device and re-assign it. Also check that the PC has drivers installed. ADB and Fastboot.

Unofficial methods: unlock without waiting

If you don't want to wait 7 to 30 days to connect your account, there are alternative ways to unlock it, but there are risks involved. EDL-Emergency Download Mode (ED) through special scripts or boxes like Mi Flash Pro. This method is suitable for devices on Qualcomm processors (for example, Redmi Note 10 Pro, POCO X3 Pro).

Unlocking through EDL will require:

1. Download the firmware for your model from the Xiaomi Firmware Updater website.
2. Install the Qualcomm driver HS-USB QDLoader 9008 (without it, the PC will not see the phone in the phone) EDL-mode).
3. Transfer the phone to EDL-Mode: Turn off the device, press Volume up + Volume down and connect to the PC. The screen should remain black.
4. Run Mi Flash Tool, select the downloaded firmware and press Flash.

After the firmware loader will be unlocked, but there are nuances:

• 🚨 The risk of turning your phone into a “brick” if you choose the wrong firmware.
• 🔒 On some models (Xiaomi 13, Redmi) K60) EDL-The mode is locked at the hardware level – unlocking is possible only through authorized service centers.
• 📱 After the firmware through EDL You may need to re-link your Mi Account.

Unlocking methods comparison: what to choose?

The choice of method depends on your phone model, willingness to wait and level of technical skills. Below is a comparative table of basic methods:

For most users, the best option is the Mi Unlock Tool — despite expectations, this is the safest way. If you need an urgent unlock (for example, to restore your phone after a soft blink), you can try the Fastboot method with the command:

fastboot oem unlock

But keep in mind that on new devices (Xiaomi 14, Redmi Note 13), this command may not work without first linking the account.

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If you unlocked the bootloader but want to get it back, use the fastboot oem lock command. However, this will reset the phone back to factory settings and may cause problems with MIUI updates in the future.

What to do after unlocking the loader?

Once you unlock successfully, you'll have new opportunities, but also new responsibilities.

• 🔄 Install custom recovery (for example, TWRP This will allow you to backup the system and install informal firmware. Note: for new models (Xiaomi 13, POCO F5) Patent recovery may be required due to changes to the signature verification mechanism.
• 📦 Make a backup of the persist partition: this partition contains unique device data (IMEI, MAC-If it's damaged, it could cause you to lose your network. ADB: adb backup -f persist.ab -apk -obb -shared -all -system
• 🔧 Check the status of Widevine: after unlocking the bootloader level DRM may fall to L3, This will limit streaming permissions on Netflix and other services, and you can check status through the app. DRM Info.
• 🛡️ Install Magisk for root rights: If your goal is root, use Magisk (not SuperSU!) to hide root from banking apps and games.

If you plan to install custom firmware (like LineageOS or Pixel Experience), make sure it supports your model. Unofficial builds may contain bugs that affect the camera, NFC module, or 5G. Before installing, check reviews on the XDA Developers or 4PDA forums.

⚠️ Note: On devices with MediaTek processor (e.g. Redmi) 10C, POCO M5) Unlocking the bootloader can cause data loss in the nvram partition, which will affect the operation of Wi-Fi and Bluetooth.

Common mistakes and their solutions

Even when following instructions, users often encounter problems, and here are the most common errors and ways to correct them:

If you encounter an error not described in the table, check the logs through the command:

fastboot getvar all

This will help determine what exactly the problem is – in locking the bootloader, the lack of permissions or hardware restrictions.

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If you unlock your phone, don't panic. In 90% of cases, you can restore it via Fastboot or EDL by asking for an official MIUI. The main thing is not to try to turn the device on repeatedly so as not to drain the battery.

How does unlocking affect warranty and security?

Xiaomi does not officially cancel the warranty after unlocking the bootloader, but this does not mean that the service center is obliged to repair the device for free. If the failure is due to the actions of the user (for example, a failed firmware), repair may be refused.

• 🕵️‍♂️ Malware vulnerability: without locking the bootloader, an attacker can install spyware on the device even without physical access (through vulnerabilities in recovery).
• 💳 Problems with banking applications: many banks (Sberbank, Tinkoff) block work on devices with unlocked bootloader or root rights.
• 🔒 Loss of function DRM: As mentioned earlier, Widevine L1 may degrade to L3, limiting viewing HD-content.

To minimize the risks:

• Install Magisk and activate the MagiskHide option (hiding root from apps).
• Use only the verified custom firmware from the XDA or 4PDA forums.
• Regularly update the TWRP and kernel to close vulnerabilities.

If you're planning to sell a phone, an unlocked bootloader can reduce the cost by 10 to 20 percent. Consumers are often wary of modified firmware because of potential problems.

1. Switch the official MIUI through the Mi Flash Tool.
2. Run the command fastboot oem lock.
3. Reset your phone to factory settings.

FAQ: Answers to Frequent Questions