Thus, in this how to guide we will show you how to unlock your iPhone 4 or iPhone 3GS running the iOS 5.1.1 firmware using UltraSn0w 1.2.7. Although we showed you how to unlock your iPhone 4 or iPhone 3GS already on the iOS 5.1.1 firmware using a hacked together version of UltraSn0w, dubbed UltraSn0w Fixer For 5.1.1, using the official solution is always a better idea as it is more stable and reliable.
Earlier today we told you that UltraSn0w was updated to version 1.2.7 to support unlocking the iOS 5.1.1 firmware.
