fastboot Command Examples

Communicate with connected Android devices when in bootloader mode (the one place ADB doesn't work). More information: https://cs.android.com/android/platform/superproject/+/main:system/core/fastboot.

• Unlock the bootloader:

fastboot oem unlock

• Relock the bootloader:

fastboot oem lock

• Reboot the device from fastboot mode into fastboot mode again:

fastboot reboot bootloader

• Flash a given image:

fastboot flash {{path/to/file.img}}

• Flash a custom recovery image:

fastboot flash recovery {{path/to/file.img}}

• List connected devices:

fastboot devices

• Display all information of a device:

fastboot getvar all