tldr/pages/common/fastboot.md

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fastboot

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