At first I thought the phone had no LED, but then I remembered it blinking white when there were notifications. So I thought it was broken. I downloaded a reminder app to play a sound, which had an LED test feature, and nothing happened. Moved on to a different app, Light Flow, which I think is the most poplar one of this sort right now. Still nothing. Now I'm sure it's busted. Then the phone rings and I see the LED is working fine (in white). I must have some software problem. Any thoughts?