3rd party sim connection issues

[ipearx]

OK after more searching I found the solution was to plug in via USB and do this:
particle keys doctor [device id]

as described here:

Electron blinking cyan

That is answered in all the threads that address the red burst (as this is the important bit in that color code ;-)) https://community.particle.io/search?q=red%20burst The common solution in these threads is particle keys doctor <yourDeviceID> particle keys server BTW, my post above yours was a reply for this topic, OP just never came back. Maybe it magically cured itself

and here:

Electron blinking cyan and green along with red bursts

The lost keys, lost settings, and lost boot loader may be variations of this problem. When some situation, it tends to be a low-power brown-out type of situation, occurs, it appears that certain flash sectors can be erased. Sometimes, it’s the sector that contains settings (like Wi-Fi settings or device keys), and sometimes it’s the boot loader. When the boot loader gets erased, the only thing that happens is the blue D7 LED will light dimly, and it will not respond to other buttons. When this…

Assuming this is a low battery/power issue, we are planning to wire the devices directly into a 12v power supply rather than use the supplied battery. So hopefully that will help.