Join the crowd, and no a hard rest or removing the battery cables didn't fix it. In matter of fact having the screen out and the whole thing disconnected from the radio or telematic module for over 6 hrs didn't fix it. Playing with the USB hubs didn't fix it like some people had luck with.
I have more problems then just that, but when it started. It was maybe the first 3 times every 15 min. Then it went away, but now it pops up every 5 min. With nothing plugged in and no bluetooth devices attached. Mine actually started doing it back in October, when I lost my Streaming stations on my radio. A soft reset worked back then for about 2 weeks. Then I lost my stations again, and the Device not supported showing up again. When I got my stations back around Thanksgiving it went away. When I lost my streamiing stations it started again. Like I said now it is a constant PITA. When I am using google maps it pops up over it. When I listen to the radio it pops up over it.
I am bringing my truck to a dealer to see whats going on with my streaming stations, and the device not supported popping up. I hope it is only a software update. But I realize since I lost my settings under System Information/Connetivity. This is when the problem always seems to start.