My photon was working fine and after some weeks without touching it, it does not anymore… If I reset it, it blinks green, then starts to breath cyan for 15 seconds then the color change to green and it keeps that way (breathing green). If I try to hold SETUP/RESET, release RESET, it flashes magenta then start to blink yellow forever. I can hold the button for 60 seconds and it just stay yellow.
In that state, if I try to call
particle flash --usb cc33000 for the next 5 seconds, it says:
Error writing firmware... Cannot open DFU device 2b04:d006
If I try the command after 5 seconds of yellow blinking, it says:
Error writing firmware... No DFU device found.
dfu-util -l has the same problem. Is there something I still can do or is the core dead?