Android GSI fastboot install

# using fastboot to flash GSI Android on device/phone
# bootloader needs to be unlocked
# System image option
## - https://github.com/phhusson/treble_experimentations/wiki/Generic-System-Image-%28GSI%29-list
## - https://sourceforge.net/projects/andyyan-gsi/files/lineage-20-light/

#check if your device is treble compatible - should return true
adb shell getprop ro.treble.enabled

adb reboot bootloader
wget https://dl.google.com/developers/android/qt/images/gsi/vbmeta.img
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
fastboot reboot fastboot

fastboot delete-logical-partition product
fastboot delete-logical-partition product_a
fastboot delete-logical-partition product_b
fastboot erase userdata
fastboot erase cache
fastboot flash system system.img
fastboot -w
fastboot reboot