This sounds dumb. In fact, that is because it is.
I tested my Electron with a Project Fi card and it worked.
I am going back (what I thought was) the Particle SIM and it isn’t working and I wonder if I have misplaced the Particle SIM and picked up another random one from my desk.
This one says m2m solutions and looks like Movistar, O2 and Vivo on it.
What does the Particle SIM have marked on it, if anything? If it’s not that one, it has probably blown away or something