I have Amazon fire TV 2nd Generation. It keeps shutting off and on. The light will be orange then go white for a few seconds and back to orange. I get no Amazon logo, nothing displays on screen just black. I've tried just about everything. Multiple TVs, HDMI wires, the keyboard alt+print scr+I trick. Nothing! I also tried connecting to my computer with A to A USB and I keep getting connected and disconnecting sounds. It's stuck in bootloop. I don't know what else to do. Suggestions. TY!