I got my photon last week. I connected to it with the particle android app and tried to change the name of the devic (just trying out the options). Afterwards I could not claim the device any more and the photon is stuck with a permanent green led ON. I cannot switch to any other mode. I tried running the photon for more than a minute, no change. Pressing the setup button for way more than 10 seconds no change. When pressing setup, then reset while continuing to hold setup no other LED colour flashes. There is just a very faint red blinking in the lower corner of the led. Once I release the setup button the led goes straight back to solid green.
I already read the post Photon Unresponsive, Solid Green Light but most of the users there could switch to other modes which is why I am asking this in a separate post.