Blinking Orange Light on Direct TV Mini Receiver

I have a DIRECTV (Mini) C51-500 in my bedroom that is all of the sudden saying "Mode Not Supported" and is blinking orange. I have reset it and tried all of the usual unplugging, restarting and trying different HDMI Ports, to no avail.

The only possible cause of this I can come up with is that I have no internet, but had borrowed a Mi-Fi and wanted to see if the signal was strong enough for TV. I connected it to my main TV with the DIRECTV HR44-500, but it wasn't strong enough to stream, so I disconnected the Wi-Fi. i'm not sure if that messed something up or not on my bedroom tv, but if it did, I can't figure out how to fix it.

Any help? Thoughts?