So I finally used the iphonesimfree licence last night to try to unlock the 1.1.1 phone I have. It says I unlocked successfully but when I put my non-AT&T SIM in, it says I inserted an non-activiated SIM card. The iphonesimfree website says it's not an unlocked issue but an activation issue. Does anyone know what exactly the problem is and how I can get my phone to use a non-AT&T SIM? BTW, my phone is already activiated using my AT&T SIM card. I just want to be able to use other SIMs when I'm traveling overseas. Thanks.