The Apple Store is my favorite place on earth... aside from maybe Disney... so I was kind of excited to go see what the guys at the genius bar could do. The guy who helped me (I always forget the names...) was very friendly and told me that in my case (no new apps, no physical damage) the only thing they could do is replace my phone, for free!
LONG STORY SHORT
if you get error code 1600 and didn't do anything wrong, go use your warranty :)
