Model i12 Bios Core Version 5.0011 (Build Date and Time: 05/03/2016 14:35:18)
This system was Black Screening at random times for no obvious reasons in both Windows and Android.
I have re-installed Windows using the download from Google and updated it. I also re-installed Android with no impact on the frequency of the random Black Screens.
SO I decided to flash the bios which appears to have been successful.
The system is still Black Screening randomly.
I have come to the end of my expertise – any ideas would be very much appreciated.