Mi8sG4-Unlocker — Fully Automatic Edition

Windows one-click bootloader (BL) unlock assistant for Xiaomi devices with Snapdragon 8s Gen 4

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📌 Project Overview

Mi8sG4_BootLoader_Unlocker is a Windows fully-automatic bootloader (BL) unlock assistant for Xiaomi devices based on the Snapdragon 8s Gen 4 platform.

This project provides an automated workflow via the toUnlock.bat script. It bundles an ADB / Fastboot environment, device-specific resources, status-checking tools, and debug entry points to complete the BL unlock process under HyperOS.

Users only need to fully extract the package on Windows, connect their device, and run toUnlock.bat; follow the script prompts to complete the automated flow.

For help or discussion, join the channel:
https://fb.com/being.as.hasib

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✨ Key Features

• One-click Windows run
  Run toUnlock.bat to start the automated workflow.

• Targeting Snapdragon 8s Gen 4 platform
  Adapted specifically for Xiaomi devices on the new 8s Gen 4 platform.

• Multi-model precise matching
  The script selects model-specific resources from the corresponding directories.

• Built-in ADB / Fastboot
  No need to separately install Android Platform Tools — just extract and use.

• BL status detection
  Includes check-unlock.bat to check bootloader lock and engineering ABL status.

• Integrated debug tools
  Includes adb-tool.bat for convenient ADB / Fastboot debugging commands.

• Lightweight resource package
  Bundles only necessary ABL / GPT resources to reduce unnecessary file size.

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📱 Supported Models

The following three Snapdragon 8s Gen 4 devices are currently supported:

Redmi series

• Redmi Turbo 4 Pro

Xiaomi series

• Xiaomi Civi 5 Pro

Tablet series

• Xiaomi Pad 8

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🧩 System Requirements

Please confirm your device meets the following requirements before use.

Item	Requirement
PC OS	Windows 10 / Windows 11
Phone OS	HyperOS 2.0 or later
Android Security Patch	February 2026 or older
Device platform	Snapdragon 8s Gen 4
Connection	USB data cable
Debug status	USB debugging enabled

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⚠️ Compatibility Notes

System Version

Supported:

HyperOS 2.0 and above

Not supported:

HyperOS 1.0 and earlier

HyperOS 1.0 and earlier lack necessary low-level system components, so this tool's flow will not work correctly on those older versions.

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📦 Release Package Structure

Mi8sG4_BootLoader_Unlocker.zip
├── 8735-Ennea.img
├── 8sg4-unlock.bat
├── toUnlock.bat
├── check-unlock.bat
├── adb-tool.bat
├── adb.exe
├── fastboot.exe
├── AdbWinApi.dll
├── AdbWinUsbApi.dll
└── unlockFolder/
    ├── factoryImages/
    │   ├── Redmiturbo4pro/
    │   │   └── images/
    │   │       ├── abl.elf
    │   │       └── gpt_both4.bin
    │   ├── Xiaomicivi5pro/
    │   │   └── images/
    │   │       ├── abl.elf
    │   │       └── gpt_both4.bin
    │   └── Xiaomipad8/
    │       └── images/
    │           ├── abl.elf
    │           └── gpt_both4.bin
    └── unlockGPT/
        ├── Redmiturbo4pro/
        │   └── unlockgpt_both4.bin
        ├── Xiaomicivi5pro/
        │   └── unlockgpt_both4.bin
        └── Xiaomipad8/
            └── unlockgpt_both4.bin

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📁 Main File Descriptions

File / Directory	Description
toUnlock.bat	One-click entry script
8sg4-unlock.bat	Main unlock process script
check-unlock.bat	Script to check BL lock / engineering ABL status
adb-tool.bat	ADB / Fastboot debugging tool
8735-Ennea.img	Image used in the unlock flow
adb.exe	ADB tool
fastboot.exe	Fastboot tool
AdbWinApi.dll	Windows ADB runtime library
AdbWinUsbApi.dll	Windows ADB USB runtime library
unlockFolder/factoryImages/	ABL / GPT resources per model
unlockFolder/unlockGPT/	GPT unlock resources

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🚀 How to Use

1. Download the package

Download the latest version from the Releases page:

Mi8sG4_BootLoader_Unlocker.zip

2. Extract the files

Fully extract to a local directory.

It is recommended to use an English path, for example:

D:\Mi8sG4_Unlocker\

Do not run scripts directly from inside the ZIP archive.

3. Enable USB debugging

On the phone:

Settings → About phone → tap the build number repeatedly to enable Developer options
Settings → More settings → Developer options → USB debugging

After connecting to the PC, allow the USB debugging authorization prompt on the phone.

4. Start the unlock process

Double-click to run:

toUnlock.bat

Choose the corresponding model when prompted by the script and continue.

5. Check unlock status

After the unlock process completes, you can run:

check-unlock.bat

This script checks:

• Bootloader (BL) lock status
• Engineering ABL status
• Current device connection status
• Possible exceptions or errors

6. Debugging / Manual commands

If you need to run ADB / Fastboot commands manually, run:

adb-tool.bat

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⚠️ Important Notes

• Unlocking the bootloader will erase all user data — be sure to back up beforehand.
• Use the original or a reliable quality data cable.
• It is recommended to connect to a USB 2.0 port on the computer.
• Fully extract the package before running scripts.
• Do not delete, move, or rename files inside the package.
• Not recommended to run in virtual machines, remote desktop, or unstable USB environments.
• If the device is not recognized, check USB debugging authorization, drivers, and the data cable.
• There is no guarantee the tool will work for all system versions, region variants, or device states.

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❓ Frequently Asked Questions

Q: What if the device is not recognized after running the script?

Check:

• Whether USB debugging is enabled
• Whether the phone showed a USB debugging authorization prompt
• Whether you tapped Allow for debugging
• Whether the data cable supports data transfer
• Whether Windows drivers are installed correctly
• Whether another phone management tool is occupying ADB
• Whether the package was fully extracted

Q: Can HyperOS 1.0 be used?

No.
This tool requires HyperOS 2.0 or later.

Q: Will unlocking wipe data?

Yes.
BL unlock will erase user data — please back up first.

Q: Why is an English path recommended?

Some batch scripts and ADB / Fastboot tools may behave unexpectedly when run from Chinese or special-character paths.

Recommended path:

D:\Mi8sG4_Unlocker\

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💬 Feedback & Discussion

If you encounter any of the following issues on supported models:

• Device not recognized
• Script errors
• Status check abnormal
• Model matching errors
• ADB / Fastboot communication issues
• Process interrupted or failed

Please open an Issue and include as much of the following as possible:

• Device model
• System version
• Screenshot of the script
• Error messages
• Which step failed
• Current device mode: System / Fastboot

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👥 Contributors

Thanks to @Kernix for scripts support.

Kernix 💡 Scripts / 💻 8sg4_Unlocker.bat

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Thanks to @Littlenine for core technical support.

Littlenine 💡 Core technology / 💻 Unlocking boot.img

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⚖️ Disclaimer

This project is provided for technical exchange, maintenance of personal devices, and authorized testing only.

Using this tool may result in:

• User data deletion
• Device malfunction
• System failure to boot
• Warranty status changes
• Need for reflashing to recover
• Other unforeseen issues

Users must ensure they own the device or have authorization to use it and accept full responsibility for any risks.

The developer is not liable for device failures, data loss, warranty voiding, or other direct/indirect losses resulting from use of this project.

Do not use this project on unauthorized devices, for illegal activities, or to infringe others' rights.