The device is
Android 4.2 Quad Core Mini PC Smart TV Dongle Bluetooth WIFI MK809 III - RK3188bought here:
http://www.ebay.it/itm/251732166216?...84.m1439.l2649
worked fine but without root.
As in the title i was installing the Neomode 3.1, it installed succesfuly, then no more signal from the hdmi and no recognizing by PC.
Unpowered several time, and only able by reset button to connect with PC and "Found RKAndroid Loader Rock Usb" by avery flash tool.
Tried to blindly instal several rom found here trying hard to follow the line (too many external link, no a solution updated at the beginning of a post marked "Solved")

So now i'm here asking help. For my Device that i still havent recognized...
here is the picture:

https://www.dropbox.com/s/3coztcxo2q...37.27.jpg?dl=0
Is someone that can address me to how unbrick this device?