# Make sure the device is recognized
> adb devices

# Boot into bootloader mode
> adb reboot bootloader

# In bootloader mode, make again sure the device is recognized
> fastboot devices

# Flash stock LRX21O recovery image
> fastboot flash recovery recovery.img

# Flash stock LRX21O system image
> fastboot flash system system.img

# Flash stock LRX21O boot image
> fastboot flash boot boot.img

adb sideload update.zip

fastboot flash recovery openrecovery-twrp-2.8.2.0-hammerhead.img

adb sideload UPDATE-SuperSU-v2.40.zip