D7 Light Dim, Particle Photon Unresponsive

So I plugged in my Particle Photon, updated the firmware, and got it running. 5 minutes later the main LED on the board, shut off (I thought it was going to sleep so didn’t think of anything) tried waking the board via command prompt, had no connection, then researched what was going on, found out the board is fried? is this true now?

Hard to tell.
Have you tried Safe Mode and DFU Mode?

Could it be a bad power supply? Bad cable? Lots of possibilities. What supply were you using? at what voltage? Power supplied to which pin on the Photon?