So my understanding from what I have been told by Favero is that when you connect to the pedals with the app and do a zero offset, it collects some data at that time and sends it to favero. I don’t know what kind of data this involves, but I would guess it involves some logging of statistics and/or ‘error’ events that gives them some insight into how the pedals are operating. It’s possible that the app triggers some kind of self-diagnostic as part of the zero, but have no idea if that is something that they do.