Unlock the Bootloader

To install Castrum OS, your device's bootloader must be unlocked.

This step allows the system to flash a custom operating system.

Step-by-Step Instructions:

  1. Once your phone is connected in Fastboot Mode, click the button below: Unlock Bootloader
  2. The system will send the unlock command to your device.
  3. On your Pixel device, you'll see a confirmation screen with a warning.
  4. Use the Volume buttons to navigate:

    • Select "Unlock the bootloader"
    • Press the Power button to confirm your selection.
  5. Your phone will now automatically:

    • Erase all data (this is required)
    • Reboot back into Fastboot Mode with the bootloader unlocked

Your screen should look like this:

Unlocked bootloader fastboot screen