Well my X2 (X-Square) Premium HD II is stuck with "on" on the display. I was editing the radio channels, and the unit froze, so I unplugged, waited a few seconds, plugged it back in, and now it just starts up with the X2 logo, then goes blank, and only shows "on" on the display, with no response from the front buttons or with the remote. Will not power off using the power button either. Haven't been able to recover, so I've decided to move on to a GEOSATpro Micro HD instead...