Redsn0w 0.9.7b1 Download Available

Update 3: Redsn0w 0.9.7b4 is now available and no longer requires usbmux to initiate the jailbreak.

Update 2: redsn0w 0.9.7b3 download is now available and provides further stability.

Update: A newer and more stable Redsn0w 0.9.7b2 has just been released, it is recommended for beta testers to use that version instead.

The latest version of the Redsn0w jailbreak is available to download via the iPhone Dev Team. The Redsn0w 0.9.7b1 release is the much talked about untethered jailbreak for iOS 4.2.1, meaning you’ll be able to boot your iPhone without attaching it to a computer with redsn0w running, however this is very much a beta release and should be used only by veteran jailbreakers who want to help beta test the release.

The Dev Team is calling this betas backup method the “Jailbreak Monte” and the beta indeed makes it a game of chance, since not all hardware can use this jailbreak. Redsn0w 0.9.7b1 only works to jailbreak iPhone 4, iPad, and iPod touch, and only if you have saved your iOS 4.2b3 SHSH blobs with Cydia. If you rely on the ultrasn0w unlock, you also can not use the latest Redsn0w 0.9.7b1, and you’ll need to wait until the beta period is over.

Download Redsn0w 0.9.7b1

This beta release of redsn0w is currently limited only to Mac OS X users:

• Download now (Mac)

There are a several significant bugs in this beta release, most notably that Bluetooth functionality is disabled and the iPod music player only works on the 4G iPod touch at the moment. There are also reports of Springboard (application launcher) crashing frequently and many apps becoming unstable. This release is definitely not for the faint of heart or those who are not familiar with the jailbreak and restoration process.

Be sure to backup your iPhone, iPad, or iPod touch before using redsn0w 0.9.7b1 and read all instructions.