Redsn0w 0.9.7 b3 to jailbreak iOS 4.2.1 untethered is released. Redsn0w 0.9.7 b2 was released few hours back. Now we have Redsn0w 0.9.7 beta 3 version which is upgrade of beta 2 and also includes some fixes. If you faced problem when using Redsn0w 0.9.7 b2, I suggest you try using Redsn0w 0.9.7 beta 3 [...]

Redsn0w 0.9.7 b2 to jailbreak iOS 4.2.1 untethered is released. Redsn0w 0.9.7 b1 was released yesterday. Redsn0w 0.9.7 beta 2 version is released to fix some issues uncovered in b1. The issues are related to native app crashes including Task switcher. If you faced problem when using Redsn0w 0.9.7 b1, I suggest you try using [...]

Redsn0w 0.9.7 beta 1 for Mac OS X was released. It can Jailbreak iOS 4.2.1 on devices such as iPhone 4, iPod Touch 4G and iPad. Following is the post which will help you on How to Untethered Jailbreak using Redsn0w 0.9.7 The backup procedure with redsn0w 0.9.7 b1 isn’t easy. I advice you to [...]

redsn0w 0.9.6 b4 for Windows and Mac OS X to jailbreak iOS 4.2.1 is available. This tool can only do tethered jailbreak. I am providing the below download links which helps you jailbreak iOS 4.2.1 using redsn0w 0.9.6 b4 Following are the devices for which redsn0w 0.9.6 b4 supports tethered jailbreak