Hackers have been jailbreaking iOS 5 beta pretty much ever since Apple released the preview version of the next-gen mobile operating system and now iH8Sn0w has updated Sn0wBeeze to perform an untethered jailbreak of the old bootrom iPhone 3GS on iOS 5.0b1. Sn0wBreeze is a Windows application that creates a custom ipsw similar to PwnageTool and will not update your baseband, however UltraSn0w has not yet been updated for iOS 5………..
iH8sn0w has just released a new version of Sn0wbreeze v2.8 beta 2 for iOS 5 beta that supports an untethered jailbreak for iPhone 3GS with older bootrom and this this jailbreaking tool allows users to create custom iOS 5 beta 1 firmware file that is pre-jailbroken, which can be used to upgrade their iPhone, iPad or iPod Touch to iOS 5 beta 1. This new version of Sn0wbreeze adds support for untethered iOS 5 jailbreak on iPhone 3GS sporting old bootrom, so if you are lucky enough to have one of those rare early iPhone 3GS with old bootrom, you can enjoy full untethered jailbreak on iOS 5 beta right now using Sn0wbreeze 2.8b2 on Windows. Apart from adding support for full untethered jailbreak for iPhone 3GS (old bootrom), everything else remains the same. You can jailbreak all other devices (except iPad 2) right now on iOS 5, but they will be limited to tethered boot only, which means that you will have to connect your device to PC/Mac on every reboot. Users with iPhone 3GS (old bootrom) wont need to follow “Booting Into Tethered Mode” steps as they have now got support for full untethered jailbreak on iOS 5 and Redsn0w 0.9.8 is also available which can jailbreak (tethered) all devices except for the iPad 2 on iOS 5 beta. It is important to reiterate the fact that beta versions of iOS 5 are currently available to registered devs only and Apple plans to launch final version of iOS 5 to public in Fall. Download Sn0wbreeze v2.8 beta 2, here and you will find the instructions for jailbreaking using Sn0wbreeze, here.