I have a 2.5 year old Nexus 5. Good phone, good value, no major complaints. But last week, my flashlight stopped working. I use it in restaurants with dim light to see the menu. And when I was eating lunch and went to use it, it wasn't there. I tried the obvious, cutting it on and off, checking the settings, yelling at it...nothing worked. Is this a common problem or is it unique to me? It's about time to trade up, but it'd be great if I could figure this out. Thanks.