So, with my 2nd photon shutting down like mad today (8 times) I realized a unique condition exists. It's always happening in the building where I work. Without a repeater, there's no signal, so my phone wasn't able to get a signal all day due to our repeater being offline (and working poorly for the last few weeks. Looking at my logs, every time I recorded a shutdown, I was in the same place. I moved the phone to my car for the last hour of the day, and it was still working when I left work, and is still working now.
So the theory is, if the phone has trouble getting cell signal, something is going stupid in the software/hardware, and the phone hangs.
Can anyone else verify this?
I've still got the 1st photon (waiting for a return kit) so I'm going to bring them both to work tomorrow and leave one in the car for half the day, then switch them.