I have just downloaded the Stellarmate image and loaded it onto an Intel i5 NUC.
The imaging process went well but when I boot I do not see anything on my display. Maybe it has booted but simply does not display or its not booting.
To verify: Use ethernet cable from start to finish the whole project.
I had a similar issue (no boot) and my resolution was to upgrade my Kernel to a newer version. But in my case, I had at least video output and I could use the terminal.