So I got an iPhone 4 thru AT&T on march 27th. A few days later I noticed the vibration wasn't working. I took it to the apple store in brea on Tuesday April 9th. The could not fix it and gave me a replacement. I did not get a new box. They just brought out a phone from the back. I should have asked if it was a replacement. That same night I noticed it was acting weird but I got it working properly. Well yesterday (Friday) it just shut off and would not turn on. I took it back the the apple store in brea and was told the phone was tampered with and they would not replace it. They said the engraved serial# was removed and some other stuff that I didn't know what it was. Why would I do that? Was is the benefit of even doing that? I told them 5 times, you guys gave me this phone but they kept saying "we are not accusing you but there are 3rd parties". I called corporate to complain and they told me to send them the phone for review. The phone doesn't even turn on so I am going to send it to them. What a disaster.