As of today we now have 3 Boron LTE’s that have unresponsive ublox modems, does anyone have any advise as to how to diagnose these faulty units. This last one was just unboxed, new. The other two where actually in the field.
When enabling full serial debugging we can see the the main MCU is sending AT commands but we are not getting any response from the ublox.
I would like to do some root cause analysis before we raise a Particle support ticket.