Thank you so much for the thorough response!

It seems it’s easier to deal with the firmware from a Windows machine, so I’ll deal with that back in the office next week.

If that doesn’t help I’ll take it out of the case again and see what’s up. I don’t have a soldering iron yet, but if it’s an obvious problem this might be what pushes me over the edge. :)

At least he seems to be enjoying it, embracing the creative process and developing whatever he’s interested in. Seems like a pretty healthy approach.