glitch, when the screen started "twitching" and there was a "crackling" so I immediately shut it down, and waited until it shutdown, 'cause it took awhile. After a few minutes, I did the re-boot and it took forever to turn on, so since I was driving near the Apple Store I dropped in. Took about twenty minutes of waiting and then they asked if they could erase everything, and when was the last time that I synced everything? I had just synced a couple of hours ago, so I said "go to it!" During this process the phone said "iPhone has been activated" then the phone would not RESTORE, so about five minutes later, I walked away with a BRAND NEW Week 47 iPhone. Walked to my car, turned on my MacBook and restored everything in about fifteen minutes. Not certain what the little flickering of the screen was, nor was I sure what the crackling noise was, but it scared the %#*@ outta' me!!! New iPhone in hand and another happy customer. 