PwnageTool 4.2 to Untethered Jailbreak iOS 4.2.1 [How to Guide]
iPhone Dev Team has justreleasedPwnageTool 4.2 to bring untethered jailbreak for iOS 4.2.1 with the help of Greenpois0n exploit. As you know PwnageTool is a Mac OS X tool, this version support all iOS devices except iPod touch 2G.
Supported device:
iPhone3G
iPhone3GS
iPhone4
iPhone4-Verizon
iPod touch 3G
iPod touch 4G
iPad
AppleTV 2G
Important note: If you rely on ultrasn0w unlock, you MUST use this version of PwnageTool which creates custom 4.2.1 firmware with preserving the unlockable baseband to be able to unlock your iPhone again usingultrasn0w 1.2 Note: In the above guide you Must use PwnageTool 4.2 and select iOS 4.2.1 IPSW. DownloadPwnageTool 4.2 for Mac DownloadiOS 4.2.1 for all iPhone, iPod touch, iPad and Apple TV 2G