fastboot

brew install android-platform-tools

devices

fastboot devices

oem

• Unlock bootloader

fastboot oem unlock

flash

fastboot flash bootloader "bootloader.img"
fastboot flash radio "radio.img"
fastboot flash cache "cache.img"
fastboot flash boot "boot.img"
fastboot flash recovery "recovery.img"
fastboot flash system "system.img"
fastboot flash recovery "twrp.img"

update

• Just like a flash, but pick all the imgs to be flashed from a zip

fastboot update "image-hammerhead-mra58k.zip"

reboot-bootloader

fastboot reboot-bootloader