I'm using my FLIRC on my Nvidia Shield (2017). I've got it configured as described by @ixian and it's working well for the most part. One question I have is, is there any way for it to put the Shield into Sleep Mode when pressing the "All Off" button on my Harmony 650? Right now, the "all off" turns off my TV and sound bar. The Shield doesn't turn off (or go into sleep mode) however, and the green light remains on. On the native Shield remote, holding down the "previous button" would bring up the screen to allow you put into sleep mode manually, but that doesn't seem to work either. I know it will time out in 20 minutes, but the obsessive compulsive in me would like all the devices to turn off when I want them to.