You can now download snowbreeze 2.9 to jailbreak iOS 5.0.1 untethered on Windows. Snowbreeze has been given a major update on the eve of its second birthday. It can now jailbreak your iPhone 4, iPhone 3GS, iPod touch 3G, iPod touch 4G and iPad 1 untethered on iOS 5.0.1.
Pod2g's iOS 5.0.1 untethered jailbreak exploit has been used in this latest version of snowbreeze. Other jailbreak tools such as redsn0w and pwnagetool have already been updated with this exploit. You can download snowbreeze 2.9 to preserve baseband while updating to jailbroken iOS 5.0.1 firmware.
Be advised though, you can not jailbreak iOS 5.0.1 without IPSW using snowbreeze. That functionality is only limited to redsn0w. So before you download snowbreeze 2.9, do download iOS 5.0.1 firmware IPSW for your respective iOS device. Once you have all the required files, simply follow the procedure documented here to jailbreak iOS 5.0.1 untethered and preserve baseband.
Baseband preservation is particularly important for software unlocked iPhone owners. Newer basebands are hard to unlock but using baseband preservation mode in snowbreeze you can retain unlockable baseband. After the jailbreak has been applied, you simply need to download ultrasn0w 1.2.5 to unlock iPhone on iOS 5.0.1. It is imperative that you retain unlockable baseband before upgrading to iOS 5.0.1. If you upgrade without retaining baseband, your iPhone will be nothing more than an expensive paper brick.
Also keep in mind that this jailbreak is currently only compatible with older and aforementioned A4 devices. New devices such as iPhone 4S and iPad 2 can not be jailbroken untethered on iOS 5.0.1 as of now, so don't download snowbreeze 2.9 thinking that it will make any difference. For those who are totally new to the jailbreak scene, snowbreeze is only available for Windows. Pwnagetool is the relevant tool for baseband preservation along with untethered iOS 5.0.1 jailbreak for Mac OS X.
Download Snowbreeze 2.9 for iOS 5.0.1 Untethered Jailbreak On iPhone, iPad And iPod Touch