Hi, I would like to know if its possible to boot from SD card in my model of Android TV BOX. It does not have a reset button but has an update app.   Its a Giga TV Box HD890 4K. It has an Amlogic CPU   I do all the process of installing Armbian in the SD card, Android starts an update and it says:   "Map file is too short".   I really dont know what I have to do to enable multi boot. Installation is aborted.   Im getting really upset for not bein