Hi, I have a new photon and a power shield. I powered the photon for the first time from the shield and performed initial setup. I then plugged a USB into the photon for serial debugging. All worked fine. Later I tried powering the photon directly from its USB and and the led flashes and flickers a pink-red and the device is not responsive. It however does continue to work correctly when plugged into the shield.
Has connecting the photos USB whilst plugged into the shield damaged the photons regulator?, or perhaps it was faulty to start with.