Success!
ok, so the problem was in the fact that my tablet was not recognised in DNX mode. I tried to install a virtual windows 7 machine, and install the drivers for the tablet in the virtual machine. I forced the tablet to use general MTP drivers in win10, and subsequently the tablet was recognised as an intel AD device in the virtual machine. Running Mireks bat script in the virtual machine, I actually got some response from the tablet, which jumped to Fastboot mode (with the android figure with its belly open). The script window colour jumped to red, but then it froze again.
So I fell back to my normal win10 environment, set the tablet in DNX mode again, and tried to find the intel AD drivers in win10. they were hidden in a folder for Asus Android device, I have an Asus android phone. I selected google AD device drivers, but now my tablet was not recognised.
Reboot of both pc and tablet resulted in tablet recognised as intel AD device, and I could run the script. During the script, the device is recognised as a cherry trail tablet, check if you need to re-install drivers for this stage as well when the write fails.
I am now looking at my tablet doing a clean android initiation.
good luck, I hope that this helps some people
