I can confirm the same issue. My Photon was working for half a year without any issues until I plugged it into my office desktop. After that voltage regulator started overheating. I thought I shorted it somehow so tried a second photon. Left it plugged in for a hour and completely killed it. Second Photon will not even turn on anymore. That is quite strange because not any other electronics get affected by the same computer. I think voltage regulator is incompatible with Photon design.