I had my iPhone 4 stolen 3 days ago, first I was able to track, and I didn't erase/lock, because I wanted to show to the police the location ( btw I'm in Angola-Luanda), on the next day the phone did not appeared on "find my iPhone" . That it means the person who steal my iPhone erased the app or all the information in the phone? There is any other way so I can at least delete all the information on my phone? I really appreciate if anyone were able to help me.