Just wondering if anyone has had this problem... i recieved the phone today and it wouldn't read my sim, so i put my bosses sim in the phone and it wouldn't read that one either. I called rogers and we used the new sim that comes with the phone and activated it and everything worked fine until i used the sms or browser... then it said invalid sim again, took the battery out to reset it and it worked again... until now tried to transfer someing via cable and boom invalid sim pops up.