Previously I mentioned in my posts to unlock iPhone 4S on 5.1 and 5.0.1 using UltraSn0w 1.2.5 and by using Gevey Ultra SIM but these two iPhone unlocks were not compatible with all basebands. There is one other unlock method…

Although the UltraSn0w 1.2.5 is the old version used for 5.0.1 unlock but there is a UltraSn0w fixer tool or patch that enables UltraSn0w 1.2.5 to unlock some basebands on iOS 5.1. Visit this tutorial to unlock iOS 5.0.1 iPhone…