The Limera1n & Greenpois0n are based on same bootrom exploit but to make it untethered iOS 4.1 jailbreak they relay on userland jailbreak from comex which Apple can easily patch. We are sure, Apple will be gearing up to patch this userland jailbreak in upcoming iOS 4.1.1 or iOS 4.2 in next month.

Another issue with Greenpois0n & Limera1n, you can only jailbreak but you can’t unlock iOS 4.1. As in order to use this jailbreak tools you must update your idevices to iOS 4.1 which updates your baseband which is not supported by Ultrasn0w 1.1-1.

The only tool which can rescue iOS 4.1 unlockers is Pwnagetool from iPhone Dev team. iPhone dev team has be saying this from the day Limera1n is released, that if you rely on carrier unlock then you must wait for PwnageTool to be updated to support iOS 4.1 custom firmware.

Finally the first sign of progress is here, The screenshot of Pwnagetool 4.1 to Jailbreak iOS 4.1 on all iDevices displayed by Musclenerd iPhone dev team member.

Here the tweet from MuscleNerd which says,

“PwnageTool screen about to get a lot more crowded again due to limera1n exploit http://is.gd/g7P9G (unlockers win most)”

PwnageTool to Jailbreak iOS 4.1 Screenshot

PwnageTool 4.1 will support,

iPhone 4, 3GS & 3G

IPod Touch 4G, 3G & 2G

AppleTV

iPad

Stay tuned with us to know more about Pwnagetool 4.1 release and jailbreak & iOS 4.1 unlock guides.