Moments ago we mentioned that the greenpois0n untethered jailbreak for Windows is now available to download. Although this is exciting news for Window users, we also are letting Mac users know, Chronic Dev Team has updated their Mac version of greenpois0n to version rc5_3. This new version of greenpois0n once adds some minor bug fixes and improves the stability of the greenpois0n rc5 jailbreaking tool. Unfortunately there is not yet any support for the Apple TV 2G, but it will be in the next release of greenpois0n (rc6).





In meantime, you can use the Windows and Mac OS X version of greenpois0n rc5 to untether iOS 4.2.1 jailbreak for all devices mentioned above in the readme. We'll keep you informed whenever the rc6 version is released. Stay tuned

Download : greenpois0n rc5_3 for Mac OS X

Follow our step-by-step guide below to untether jailbreak iOS 4.2.1 firmware using greenpois0n rc5 :

Jailbreak iOS 4.2.1 With greenpois0n RC5 [How To]