I’m using a Version 2 Minimote. Based on several forum posts, I was under the impression that if you update the firmware on your V1 Minimote, it’s effectively the same thing as the V2 Minimote.
It doesn’t surprise me that others are having trouble getting their Minimotes working considering the difficulty I had getting mine fully operational with Hub V2. I would recommend reporting this to support in case it’s a bigger issue that needs to be solved.