I realize that the title “Xenon flashing green” is found more than once but none of what is mentioned works consistently.
Today, I received from Particle 3 Xenons. They had an older firmware (1.21) so I updated all of them using OTA.to 1.4.4
Two units worked fine after the upgrade. The third never completed the upgrade. I then tried to delete and rejoin the mesh network (with an Argon), everything works. When the power is reset, it returns to fleshing green.
I then used particle update. That did work and I upgraded firmware to 1.4.4 and unit was breathing cyan.
I then recycled power and it is back flashing green for ever! I cannot place the unit in safe mode (starts flashing magenta then returns to flashing green upon mode release).
I know the Gateway is working (because when powering more Xenon units, they all connect).
Do I have a defective unit?
I unplugged the Xenon for about 10 minutes. When powered again, it hooked up to the cloud (via the Argon). I then re-flashed the same code and now it seems to be working.
Not sure why though?