Download Redsn0w 0.9.6 b5 unlock for iOS 4.2.1
How to unlock iOS 4.2.1 on iPhone 3G and 3G S with Redsn0w 0.9.6 b5 for Windows. Download the iOS 4.2.1 ipsw file for iPhone 3G or 3G S. Run Redsn0w 0.9.6 b5 and point it to the downloaded iOS 4.2.1 ipsw file. Windows 7 and Windows Vista users should ......