my blu win hd lte (x150e) dead at the time of recovery due software crash. what is the solution?

[Windows Central Question]

I tried through windows recovery tools and becuse of some techinical problem usb disconnected and mobile software crashed. No logo or disply or light seen. shows totaly dead. if we connect computer massge seen that there are some unknown usb device connected.(my blu win hd lte (x150e) dead at the time of recovery due software crash). what is the solution to recover?