Lenovo BootLoader Unlock Tool-NekoYuzu-Meow Mobile

Lenovo BootLoader Unlock Tool
by NekoYuzu v1.0.0

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Flashing Freedom! Device manufacturers should not limit the BootLoader unlocking needs of normal users. So we made this.

The more we were made:

OPlus (OPPO/OnePlus/Realme/Nothing) TEE Repair

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Duoqin Qin F21 Pro Unlock Tool

If these help you, you can buy me a coffee as a way of show me your appreciation :)

Copyright © 2002-2025 NekoYuzu (MlgmXyysd), © 2013-2025 MeowCat Studio, © 2020-2025 Meow Mobile All Rights Reserved. All copyrights (and link, etc.) in this software are not allowed to be deleted or changed without permission.

EULA

As an end user (hereinafter referred to as "you"), you only have the right to use the Lenovo BootLoader Unlock Tool (hereinafter referred to as "software") provided by NekoYuzu (hereinafter referred to as "me"). You are not permitted to attempt to obtain the source code by any means (including, but not limited to, decompiling, disassembling, etc.). You are not permitted to remove or alter all copyrights (and links, etc.) to software without permission. You are not permitted to redevelop or sell software. If you have purchased this software from another source, you are obliged to report it to me. By using this software, you understand and agree to all of the terms and conditions of software (and third party libraries). If you do not agree to these terms, you should close software and remove all copies of software from your possession immediately. The final right of interpretation belongs to me.

* The "Android", "Google" and other Google trademarks, are property of Google LLC. The "Lenovo", "ZUI", "ZUX OS" and other Lenovo trademarks, are property of Lenovo Group Limited.

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Please select initial operating system type first.

Serial Number of this initial OS should be less or equal than 16 digits.

On System (adb)

On BootLoader (fastboot)

Prepare debugging environment from Android SDK Platform Tools.
Tap Settings > About phone / tablet > Build number option seven times until you see the message You are now a developer!
Enable Settings > General settings > Developer options > USB debugging option.
Connect your device to computer via USB, install Google USB Driver.
Allow USB debugging in your device.
Obtain Serial Number via command adb shell getprop ro.boot.serialno.

Prepare debugging environment from Android SDK Platform Tools.
Enter BootLoader mode by long pressing a key combination Power + Volume Down or command adb reboot bootloader.
Connect your device to computer via USB, install Google USB Driver.
Obtain Serial Number via command fastboot getvar serialno.

Serial Number of this initial OS should be 64 digits.

On System (adb)

On BootLoader (fastboot)

Prepare debugging environment from Android SDK Platform Tools.
Tap Settings > About phone / tablet > Build number option seven times until you see the message You are now a developer!
Enable Settings > General settings > Developer options > USB debugging option.
Connect your device to computer via USB, install Google USB Driver.
Allow USB debugging in your device.
Obtain Serial Number via command adb shell getprop ro.boot.bootload_sn.

Prepare debugging environment from Android SDK Platform Tools.
Enter BootLoader mode by long pressing a key combination Power + Volume Down or command adb reboot bootloader.
Connect your device to computer via USB, install Google USB Driver.
Obtain Serial Number via command fastboot getvar Bootloader_SN_Part1 and fastboot getvar Bootloader_SN_Part2.
Put Serial Number parts together in sequence Bootloader_SN_Part1 + Bootloader_SN_Part2.

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Disclaimer (Must read before operation)

After unlocking the BootLoader, you may encounter the following situations:
- Software or hardware not working properly or even damaged.
- Loss of data stored in the device.
- Credit card theft, or other financial loss.
- Hardware or software warranty lost.
- TEE-related features may be permanently damaged.

If you're experiencing any of the above,you should take all the responsibility yourself as this is the risk you may encounter when unlocking BootLoader.This obviously does not cover all risks.You've been warned.

Prepare debugging environment from Android SDK Platform Tools.
Tap Settings>About phone/tablet>Build number option seven times until you see the message You are now a developer!
Enable Settings>General settings>Developer options>OEM unlocking option.
Enter BootLoader mode by long pressing a key combination Power+Volume Down or command adb reboot bootloader.
Connect your device to computer via USB,install Google USB Driver.
Obtain Serial Number for initial operation system of your device.
Obtain unlock file via Lenovo Official Website or here.
(Optional)Unlock critical partition by command fastboot flashing unlock_critical,select UNLOCK THE BOOTLOADER via Volume keys.Then enter BootLoader mode after reboot.
Flash unlock file by command fastboot flash unlock sn.img.
Unlock BootLoader by command fastboot oem unlock-go or fastboot oem unlock.
After BootLoader unlocked,you will see BootLoader unlocked warning on every boot.
(Optional)Erase unlock partition by command fastboot erase unlock to avoid potential Android Verified Boot failures.

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v1.0.0 2025/06/15Initial release

Initial release

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An error occurred while generating unlock data,check the OS Type or Serial Number input.

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Unlock data file has been saved.If not,check download settings of your browser and try again.

Next,you can follow the Lenovo BootLoader Unlocking Guide to unlock your phone/tablet.

If this helps you,you can donate to me as a way of show me your appreciation!

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