So, I have an nvidia shield on our family room TV that works flawlessly. A year ago I got a mi-box to pair with a projector in our (little used) home theater room. Yesterday I turned it on for the first time in a few weeks and I don't get any picture from the mi box. I am getting a signal through the same AV receiver from the blu ray player. I unplugged and restarted the mibox, but to no avail. Tried swapping the HDMI cable from the working bluray, but didn't get any android tv through that either. The light on the front of the mibox is on, but nothing is coming up on screen (other than a message from the projector that there is no signal).

Any thoughts? I'm going to try a hard reset tonight by holding the ok button and the back button while plugging in the device.