So as it turned out, the Verizon iPhone 4 is vulnerable to Limera1n bootrom based exploit, and untethered GreenPois0n kernel based exploit which makes it possible to jailbreak on iOS 4.2.6, untethered using GreenPois0n RC5.4.
With Verizon iPhones starting to arrive with lucky customers already, the question on all our lips was simple: is the CDMA version of Apple's smartphone jailbreakable on iOS 4.2.6 using existing software? Well, it appears it is!
Its here finally ! Chronic Dev Team has released Windows version of GreenPois0n iOS 4.2.1 untethered jailbreak for iPhone, iPad and iPod touch. And just like the Mac version, Windows version is compatible with iPhone 4, 3GS, iPod touch 4G/3G/2G and iPad.
With Chronic Dev Team releasing GreenPois0n RC5 yesterday much was made of the inclusion of the option to add a custom animated boot logo. That's all well and dandy, other than the fact it doesn't entirely work.
The following instructions will help iPhone 4 unlockers to update to iOS 4.2.1 while keeping the old 1.59.00 baseband, jailbreak it untethered with GreenPois0n RC5, and then unlock it with Ultrasn0w.
Chronic Dev Team has finally released the much awaited GreenPois0n RC5 which brings full untethered iOS 4.2.1 jailbreak for all iOS devices. Unlike Redsn0w 0.9.7, GreenPois0n RC5 doesn’t require you to have SHSH blobs of 4.2b3 saved on Cydia. You can jailbreak any iOS device out of the box on iOS 4.2.1 using this latest version of GreenPois0n.
The news today is that it appears GreenPois0n RC5 will be bringing untethered jailbreak to iOS 4.2.1 sooner rather than later. Twitter user @JHackstar tipped us off to a Wiki showing that GreenPois0n RC5 is 'coming VERY soon' and will support all devices.
Members of Chronic Dev Team have just released a new video which shows full untethered jailbreak for iOS 4.2.1 in action.
iPhone developer Joshua Hill of the Chronic Dev Team has publicly confirmed that he is going to release an updated version of GreenPois0n with support for iOS 4.2.1 jailbreak as soon as he is done adding sandbox patches.