It's not jailbroken. Unlocked means it has been verified with AT&T on iTunes then my sim was taken out and any other sim can be put in and it will work. And yes it is under warentty. I called apple last week and it's am easy in store fix. My price is pretty good compared to what the going rate o
craigslist and eBay is. $100 from AT&T is if you sign a 2 yr contract....