Yep, I held for much longer than 5 to 10 seconds about a thousand times as I was trying everywhere on the screen just in case a single pixel would be responsive. I updated it within the past week or so on the unstable channel. So no remote factory reset option eh? Maybe a good idea to build that option then! At least for us to factory reset our own through our web interface.
I'll keep trying for the remaining duration of the current batch in the fermentation chamber. If no luck, I'll send it your way.