Step 1: Before users can take advantage of the software-based Ultrasn0w unlock, the device must be jailbroken. The first step in the process is to jailbreak iOS 5.1.1.
To we not only have but also have our old traditional jailbreak tools from iPhone Dev Team, released few days back. The only advantage of Redsn0w or PwnageTool over Absinthe is ability to create custom iOS 5. How To Unlock Screen On Iphone 5c. 1.1 firmware with preserve baseband option.
Those who have iOS devices with, here is good news for you. IPhone Dev Team has released an updated version of Ultrasn0w 1.2.7 compatible to iOS 5.1.1. All you need to do is create custom firmware using PwnageTool 5.1.1 and restore with iTunes in DFU mode. Unlocked Gsm Smart Cell Phones. Once you are on iOS 5.1.1 with Cydia you can install Ultrasn0w 1.2.7 and get your iPhone unlocked at iOS 5.1.1. Here is our step by step guide on how unlock iPhone 4, 3GS on iOS 5.1.1 Unlock iPhone 4, 3GS iOS 5.1.1 with Ultrasn0w 1.2.7 1.