These instructions are for Amlogic CPUs for TV Boxes.    Note: If you have previously run other distributions on the box such as coreelec the below installation will not work.  You will need to restore the original android firmware before attempting the install.  coreelec changes the boot environment in ways that are incompatible with these Armbian builds.   Download links:     Weekly Community Rolling Builds:  https://www.armbian.com/amlogic-s9xx-tv-box/     or bui