Great news from now to onwards you can either use GreenPois0n RC5 or GreenPois0n RC5_2 to have Untethered jailbreak on Verizon Wireless CDMA iPhone 4 running on iOS 4.2.6. This news was confirmed through a tweet from @TheMaxBeta.
![Jailbreak iOS 4.2.1 Untethered on iPhone 4, 3GS With PwnageTool 4.1.3 & Custom PwnageTool Bundle[How To]](https://thetechjournal.com/wp-content/uploads/2011/02/jailbreak_iphone1-243x300-150x150.jpg)
iPhone developer and hacker Nadeem Ateyeh has released Untethered Jailbreak for iOS 4.2.1 using custom PwnageTool Bundle. It allows you to upgrade your iPhone firmware by preserving your baseband. So then, you can unlock your iPhone to any carrier if you would like. This tool is very effectfull for the people who is living in different countries but have got their iPhone as a gift from any other part of the world.
![Jailbreak iOS 4.2.1 with Greenpoison RC5 Windows on iPhone, iPad and iPod Touch[How To]](https://thetechjournal.com/wp-content/uploads/2011/02/greenpois0n51-150x150.jpg)
Chronic Dev Team has already released Windows version of GreenPois0n RC5 iOS 4.2.1 untethered jailbreak for iPhone, iPad and iPod touch. It allows users to perform an untethered jailbreak on iOS 4.2.1 devices. This release works to jailbreak all iPhone, iPod touch, iPad models. Here is the step by step guide for Windows users to apply untethered jailbreak on iOS 4.2.1 devices while using Greenpoison RC5. Greenpois0n Windows version jailbreaks all idevices except Apple TV2, which will supported in the next update.
Good news for Apple TV 2G users. Greenpois0n is coming to jailbreak it as well. In a recent reply to a user’s tweet, @pod2g, the key member of Chronic Dev Team said that Greenpois0n RC6 would bring untethered jailbreak support for Apple TV 2G on iOS 4.2.1. Checkout his tweet after the break.
Finally Chronic Dev Team has released Windows version of GreenPois0n RC5 iOS 4.2.1 untethered jailbreak for iPhone, iPad and iPod touch. It allows users to perform an untethered jailbreak on iOS 4.2.1 devices. This release works to jailbreak all iPhone, iPod touch, iPad models, as well as Apple TV2.
![Jailbreak iOS 4.2.1 Untethered On iPhone 4, 3GS, iPad, iPod Touch and Apple TV on Mac OS X Using GreenPois0n RC5_2[How To]](https://thetechjournal.com/wp-content/uploads/2011/02/greenpois0n21-150x150.jpg)
Dev Team has also released GreenPois0n RC5_2 for Mac. It contains fixes of various issues occurring in GreenPois0n RC5. GreenPois0n RC5_2 can also be used as untethered jailbreak for iPhone 4, iPhone 3GS, iPod touch 4G, iPod touch3G and iPad running on iOS 4.2.1 without SHSH blobs of iOS4.2b3.
Dev Team has released GreenPois0n RC5_2 for Mac. It contains fixes of various issues occurring in GreenPois0n RC5. GreenPois0n RC5_2 can also be used as untethered jailbreak for iPhone 4, iPhone 3GS, iPod touch 4G, iPod touch3G and iPad running on iOS 4.2.1 without SHSH blobs of iOS4.2b3.
![Jailbreak iPhone 4 (1.59.00 Baseband) Untethered On 4.2.1 With GreenPois0n RC5 and Unlock With Ultrasn0w[How To]](https://thetechjournal.com/wp-content/uploads/2011/02/im_client-150x150.jpg)
It’s the day for the iPhone jailbreakers and unlockers. Chronic Dev-Team has released greenpois0n RC5 which jailbreaks your iPhone 4/3GS, iPod touch or iPad on iOS 4.2.1 completely untethered and i already posted the step by step guideline here. However, that tutorial is only suitable for those who do not rely on a software unlock (ultrasn0w) for using their iPhone on an unsupported carrier.