Protection against changes on Xiaomi smartphones is a set of measures that the manufacturer has implemented to prevent unauthorized modifications of the system, including blocking the bootloader, checking the digital signature of firmware (MIUI Protection) and restrictions on the installation of third-party software. These mechanisms protect the device from malicious attacks, but at the same time make life difficult for enthusiasts who want to install custom software, obtain root rights or flash an alternative version of MIUI.
The problem is compounded by the fact that Xiaomi regularly tightens security policies: if previously unlocking the bootloader took several minutes, now requires an account binding, waiting in line and even manual verification by the support team. In this article, we will discuss all the current ways to disable protection, from official unlocking through the Mi Unlock Tool to bypass methods for power users, POCO X5, Xiaomi 13T) version MIUI (including MIUI 14 and HyperOS).
What is Change Protection on Xiaomi and Why You Should Turn It Off
By βchange protectionβ on Xiaomi, there are three key mechanisms:
- π Bootloader lock β prevents installation of unofficial firmware and modified cores, and is blocked by default on all devices released after 2017.
- π‘οΈ MIUI Protection β checks the digital signature of the firmware when updating via fastboot or recovery. ZIP-file.
- π Anti-Rollback Protection β protects against rollbacks to the old version MIUI, which can lead to a "brick" (inoperability) of the device.
Disable protection is required in several cases:
- π± For custom firmware installation (LineageOS, Pixel Experience, ArrowOS).
- π§ Getting root rights through Magisk or SuperSU.
- π Bypassing regional restrictions (e.g., unblocking) 5G model-on).
- π οΈ Restore the device after a software failure if official methods do not help.
β οΈ Warning: Disabling protection deprives the device of warranty and increases the risk of installing malware. on some models (Xiaomi) 12S Ultra, Redmi K60 Pro) improper unlocking may result in hardware locking of the module 5G camera.
Unlocking with Mi Unlock Tool
The safest method is to use Xiaomiβs Mi Unlock Tool, which takes 72 hours to 2 weeks to verify your account, but minimizes the risk of a βbrick.β
Algorithm of action:
- Download Mi Unlock Tool (version no lower than 5.5.224.30 for MIUI 14).
- Sign in to Mi Account on your phone and utility (should be one account!).
- On your phone, go to Settings β About Phone β MIUI version and tap 7 times on the build number to activate Developer Mode.
- Back to Settings β Additionally. β For developers and include: π§ Debugging by USB π Unlocking OEM (point!)
fastboot
Loudness down + Nutrition
Mi Unlock Tool
"Couldn't unlock. Wait XX hours"
Download the latest version of the Mi Unlock Tool|Link Mi Account to your phone (in account settings)|Enable debugging on USB unlock OEM|Connect your phone to fastboot mode|Have the original at hand USB-cable (not wireless charging!)
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Since 2023, Xiaomi has tightened the rules:
- π Minimum waiting time: 72 hours (previously 360 hours).
- π± You can unlock no more than 3 devices per month on one account.
- π The phone must be linked to the account for at least 7 days before unlocking.
β οΈ Note: On models with HyperOS (e.g. Xiaomi 14, Redmi) K70) Unlocking through the Mi Unlock Tool may require additional confirmation via the SMS email, even if your account has been linked for a long time.
Unofficial methods: bypass MIUI Protection without unlocking the bootloader
If official unlocking is not available (e.g. due to time or region restrictions), alternative methods can be used, which are suitable for installing modified firmware without fully unlocking the bootloader, but have limitations.
Method 1: Using Patched Firmware Through TWRP
- π§ Temporary required TWRP (You can start without unlocking the bootloader on some models).
- π The firmware must be signed with an unofficial certificate (for example, from the Xiaomi.eu team).
- β οΈ Risk: After rebooting, the device can return the stock firmware (on models with Anti-Rollback 4)+).
Method 2: DirtyCOW exploit (for older versions of MIUI)
It works on devices with MIUI 10-12 and kernel up to Linux 4.9. Allows you to get a temporary root without unlocking, but requires:
- Installations APK-exploit (e.g. DirtyCOW Miui from the XDA Developers).
- Launching via ADB with superuser rights.
- Manually mount /system partition in write mode.
List of models vulnerable to DirtyCOW
Method 3: Use EDL-The mode (for advanced users)
Emergency Download Mode allows you to flash the device through Qualcomm tools (QFil or Mi Flash) without unlocking the bootloader.
- π Authorized is required EDL-cable (or homemade with a resistor of 300 kΞ©).
- π» You need original firehose files for your model.
- β οΈ Risk: Incorrect firmware in EDL This results in a full brik (programmer required).
Official (Mi Unlock Tool)|TWRP + patched-firm|Exploitation (DirtyCOW)|EDL-regime|I've tried nothing.|Another method-->
Unlocking for specific models: nuances and exceptions
The process of disabling protection varies depending on the model and version of MIUI. Below are key features for popular devices.
| Model | MIUI/HyperOS version | Features of unlocking | Recommended method |
|---|---|---|---|
| Redmi Note 12 Pro+ | MIUI 14 / HyperOS 1.0 | Requires an account binding of at least 168 hours Anti-Rollback 5. | The official Mi Unlock Tool + wait 7 days. |
| POCO X5 Pro | MIUI 14 (Global) | Supports temporary TWRP without full unlocking. | Patched firmware via fastboot. |
| Xiaomi 13 Ultra | HyperOS 1.0 (China) | Lockdown 5G-module in unofficial unblocking. | Only the official method with confirmation via SMS. |
| Redmi 10A | MIUI 12.5 | Vulnerable to DirtyCOW. No Anti-Rollback. | Exploit or EDL (with caution). |
For models 2023-2026 (Xiaomi 14, Redmi K70, POCO F6) there are additional restrictions:
- π HyperOS blocks installation of older versions MIUI even after unlocking.
- π‘ On the Chinese versions (CN ROM) Unlocking requires a Chinese phone number to SMS-confirmation.
- π§ In fastboot added verification of the unique key of the device (UID), Which makes it difficult to use universal firmware.
fastboot getvar antiIf the value of anti=5 or higher, custom firmware installation can lead to blocking of IMEI.
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What to do if unlocking doesnβt work: Common mistakes and solutions
Even when you follow the instructions, users encounter errors, and let's look at the most common ones and how to fix them.
| Mistake. | Reason. | Decision |
|---|---|---|
| Couldn't unlock. Wait XX hours | The minimum waiting time (72-720 hours) has not passed. | Wait for the specified time without untiing the account. |
| This account is not bound to this device | The account is not tied to a phone or is tied for less than 7 days. | Re-link your account to Settings β Mi Account β Security. |
| Fastboot command not allowed in locked state | Try to flash custom recovery on a locked bootloader. | Use the official Mi Unlock Tool or EDL. |
| Anti-Rollback check fail | An attempt to roll back the old version of MIUI. | Only use the new or approved version of the software. |
Additional problems and solutions:
- π Device not defined in fastboot: Check the cable (you need the original Xiaomi or with data support).Install Qualcomm drivers HS-USB QDLoader 9008 for the EDL. Disable driver signatures in Windows (via gpedit.msc).
- π Once unlocked, the phone loads into fastboot: Swipe the stock firmware through Mi Flash (choose clean all). If it doesn't work, use it. EDL file-wise prog_emmc_firehose.mbn.
β οΈ Note: If the phone stops turning on after unlocking the bootloader (black screen, vibration without logo), do not try to sew it through fastboot - this can aggravate the problem).
How to return protection: lock the bootloader and restore MIUI Protection
If you decide to return the device to stock (for example, for sale or warranty repair), you must:
- Swipe the official firmware through Mi Flash (select the clean all and lock option).
- Make sure that the bootloader status has changed to locked (checked by the fastboot oem device-info command).
- Reset the device to factory settings via Settings β Reset.
Important nuances:
- π Once the bootloader is locked, all data will be deleted, including internal memory (/data).
- π± On some models (Xiaomi) 12S, Redmi K50) The lock requires authorization through the Mi Account, which was used to unlock the device.
- π§ If the device was stitched through EDL, locking the bootloader may not work β you will need firmware through the hardware programmer.
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Alternative solutions: when unlocking is not necessary
It is not always necessary to turn off the protection completely, in some cases it is enough to bypass certain restrictions:
- π± Installation APK Unlimited: Include Unknown Sources in Settings β Privacy. Use it. ADB-Installation command: adb install -r -t name file.apk
- π§ Getting root without unlocking: On MIUI 12β14 Magisk in is working RAM (Temporary root, valid until reboot. Patched image required boot.img and ADB.
- π Bypassing regional restrictions: Use XiaomiADBFastbootTools to change the firmware region without unlocking. 5G Chinese models are required QCN-file IMEI.
Important: On HyperOS devices (2026) bypassing regional restrictions ADB This can lead to a network lock after an update.Before experimenting, back up the partition. modemst1 and modemst2.