The only activity I can get from it is when the battery is out and under USB power the LED will blink red after holding Power for a few seconds. Nothing on the screen and no sounds. This was working perfectly since a few months and is indeed a "real" one. ADB will not recognize it and Windows 7 doesn't see it either. There isn't much info online for this model, can anyone offer assistance to further diagnose and hopefully repair? There is a "fix" for a similar situation regarding the Mi2 where pins are shorted, but this model is a different configuration.