How to Unlock the Bootloader on Lenovo Legion Y700 (2023)

Unlocking the bootloader on your Lenovo Legion Y700 (2023) can give you more control over your device, allowing you to install custom ROMs or root your tablet.

Note: This method does not work on firmware 15.0.761 or 15.0.795. For these versions, other methods are required.

Bootloader Unlocking

Step-by-Step Guide

1. Enable Developer Mode
   • Go to Settings > About Tablet, and tap Software Version 10 times until Developer Mode is activated.
2. Access Developer Options
   • Go back to Settings > General Settings, then open Developer Options.
3. Enable OEM Unlocking and USB Debugging
   • Toggle on OEM Unlocking and USB Debugging.
   • Connect the tablet to your PC using a USB cable (plug into the long side port).
   • Authorize USB debugging on your PC when prompted.
4. Download Platform-Tools and USB Driver
   • If it’s your first time working with a bootloader, download and install platform-tools and the USB driver for your PC. Unpack them into a folder on your PC for easy access.
5. Open Command Prompt in Platform-Tools Folder
   • Navigate to the folder where you unpacked platform-tools.
   • In the folder address bar, type CMD and press Enter to open a command prompt window.
6. Boot into the Bootloader
   • Once connected via USB, type the following command in the command prompt to boot into the bootloader.

adb reboot bootloader

Troubleshooting: PC Not Detecting Device in Fastboot?

If your PC doesn’t recognize the tablet in fastboot mode, make sure all necessary drivers are installed, and try a different USB port or cable.

7. Unlock the Bootloader
   • In the command prompt, type

fastboot flashing unlock

7. Confirm Bootloader Unlock on Tablet
   • Use the volume rockers to select Unlock Bootloader, then confirm the selection with the power button. The tablet will reset and boot into the system.