Can you get your Photon into DFU mode (yellow blinking)?
If so you could try reflashing the system
particle update
or any other way outlined here
If this doesn't help, open a support ticket at https://support.particle.io
Can you get your Photon into DFU mode (yellow blinking)?
If so you could try reflashing the system
particle update
or any other way outlined here
If this doesn't help, open a support ticket at https://support.particle.io