I have a firetv cube connected to my Visio tv.. Using home assistant to send adb commands to the firecube. I have collected the key command using learn sendevent to power off the tv.. If I use the adb command "HOME" to power on the cube and set the TV input it works perfect, but when I send the cube a command(any learned command) back it does not work, unless I first use the actual remote then all commands work perfect..