Understand, me telling you all this isn’t to be mean or to “harp” on, it’s just to let you know and perhaps let anyone else know who reads this topic. If I don’t say anything, then that’s one more person potentially using the “trick” 
Some people relate that to the board names (which doesn’t work), some people relate V1 to unpatched Erista, and V2 to patched Erista. The only reason why I was asking for clarification 
Yeah not your fault 
check my thoughts here on this
Does the big chip in the middle say “GD32XYZ” or something along them lines? (or if you can capture the part number in the photo?) Just curious as to what version this is, I think it looks the same or very similar to the one I had (years ago in my case)