I successfully unlocked my iPhone and my mother-in-laws with QuickPwn. Both worked great...until my mother in law upgraded her's to 2.2.1. I downloaded the proper quickpwn files for 2.2.1 but no luck. I re-installed 2.2 and tried it. No luck. What did she do wrong? When I put my Tmobile SIM in I get the message "Different SIM detected, Please connect to iTunes." Help me o' wise ones!