iPhone 4S Baseband Dumped now , Ultrasn0w Unlock Very Imminent ! The baseband bootrom for the iPhone 4S has been dumped by the iPhone Dev-Team. The information of such an update has been tweeted by MuscleNerd, an iOS hacker, developer and member of iPhone Dev-Team. As the baseband has been successfully dumped, the team can now extend their ways further to even crack other bits of the code to get the unlock ready. This solution looks really promising.
It is difficult to speculate the ETA but we can know that it is probable to reach the only after the jailbreak of iPhone 4S that has been already dealt before in much detail. It is most likely to be released in the form of an update to popular unlocking tool ultrasnow. The latest version of ultrasnow, 1.2.4, supports the unlocking of iPhone. So apart from the hardware unlocking solution, there must be an existence of jailbreak to unlock the iPhone 4S.
Thus, if you are an iPhone 4S user, you will have to wait for the unlocking hack until the jailbreak gets released or the developers should have a solution for the jailbreak in place.
Source : Twitter