fastboot boot test-kernel.img
fastboot flash-all
| Command | Description | |---------|-------------| | fastboot flash <partition> <image.img> | Write an image to a partition (e.g., fastboot flash boot boot.img ). | | fastboot flashall | Flash all images from the current directory (requires android-info.txt or flash-all.sh ). | | fastboot erase <partition> | Erase the content of a partition (e.g., fastboot erase userdata ). | | fastboot update <ota.zip> | Flash an OTA package or full firmware zip (reboots automatically). | fastboot command
Unlocking the bootloader allows you to flash custom images. fastboot boot test-kernel