I don't know what the difference between the plus and the pro devices are (aside from the storage size) but I can't manage to get any image for the Plus model when the same iso works fine for the pro model
https://theminixforum.com/index.php?threads/neo-z83-4u-ubuntu-ubuntu-20-04-lts-image.3111/
this is the image I'm referring to
https://theminixforum.com/index.php?threads/neo-z83-4u-ubuntu-ubuntu-20-04-lts-image.3111/
this is the image I'm referring to