Let me give you info about another paid method to factory unlock iPhone 4 AT&T iOS 5.1.1 and lower including such basebands as 4.12.01 and 4.11.08.

There almost three hours have passed when I published my last post about possibility to unlock iPhone 4 04.11.08. And I read in twitter another news that made me to find out more about this. I'm sure that all Mac, iPhone, iPad and iPod Touch users know and read respectable Apple observer Cult of Mac. I also visit this website but not often. However reading tweets I saw the tweet that was really intriguing and the most important it was tweeted by CoM claiming that there is a new site that can factory unlock iPhone 4 AT&T 5.1.1 for less price: As you see this factory unlock iPhone 4 AT&T is not only for iPhone 4 but for 4S, 3GS, 3G and 2G. Also it claims to unlock iOS 5.1.1, 5.1, 5.0.1 and 5.0 on any baseband even such as 4.12.01 and 4.11.08. As for me the most pleasant in this factory unlock that it also can get in contract iPhones free from chains and no AT&T account is needed. You can order unlock for one iPhone ($100), for ten iPhones ($750) or you can choose buck unlocking for negotiated price. It is 100% money back guaranteed if they wouldn't factory unlock iPhone 4 AT&T iOS 5.1.1. This method uses IMEI unlock just like here. Oh, BTW, it is no jailbreak required and doesn't void warranty. Well what can I say, if talking about pros and cons I can assumed that it is the reputation of Cult of Mac at stake. If this permanent unlocking solution is working then it is great because if comparing with some other propositions this one is better. But if doesn't, think yourself. Also it is nothing said about blocked AT&T iPhones listwise I didn't find anything about it. I don't know to believe it or not till I try it myself. It can be true factory unlock iPhone 4 AT&T iOS 5.1.1 but I can't offer you to try it. I'm just sharing info with those who are stuck on baseband 04.12.02 and 4.11.08 which are the most part of locked iPhones and have nothing left to try it.