You are probably right. I was suspecting that it might be the same issue - which is why I have posted my issue in this thread too.
Wow! I didn’t read the information since my last post. Unbelievable!
I just got back from Mexico, where I had the systems deployed initially - but after reading @evk02 situation is exactly the same that happened to these borons 2G/3G I have now -flashing green ( I have the same report with the “Failed to initialize ublox NCP client: -210” ).
I even try to get them back following the next procedure Boron Debug - rickkas .
This whole experience with Particle has been bitter sweet, but more bitter than sweet.
Pretty much all the prototypes or testing products built, somehow or somewhere down the road they break or something weird happens to them and the possible final users start loosing interest - so far it has been my experience, which has taken us to try and stick with other technologies.