Jailbreak and Unlock iPhone 3GS with iOS 5.1 by using Redsn0w
Before upgrading your iPhone to iOS 5.1 you must check that your iPhone has old bootrom because if your iPhone has a new bootrom then each time your reboot you must connect it to computer. You must save your SHSH blobs before continuing to upgrade. Step 1: Create a new folder Pwnage in which
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