Particle P1 LED Breathing red

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Hey there,

I’ve got a device that we’ve uploaded the firmware to and the Particle LED is breathing red.
I’ve consulted the chart over at:
and none of the described methods talk about a breathing red LED, only Blinking.

Does anyone have any insight into this?



Breathing red is not a known/valid colour code.
Could it be breathing magenta?
Can you provide a video?


A P1 sitting on your own board I take it. Did this work before? If this is your first time checking out the board/P1, could it be your system LED is not hooked up correctly and you’re really looking at breathing green?