released Sn0wBreeze v2.9.2 to Jailbreak the iOS 5.1 firmware tethered on all A4 iOS devices. This will be some great news for all of you who would prefer to Jailbreak iOS 5.1 through custom IPSW creation. Often times this method of Jailbreaking is more geared towards unlockers or users who want to specify advanced Jailbreak customization options.
What is New?
Added Tethered Jailbreak support for 3GS/iPod Touch 3/A4 Users on iOS 5.1 (9B176)
iPhone 3GS old-bootrom users are untethered on 5.1/9B176 (as usual).
Bug Fixes (Specifically with the iPad baseband and iPhone 2G).
Re-added the iPhone Dev-Team's iPhone 2G permanent unlock 'BootNeuter'.
Why is there no A5 support? :~(
A low level (DFU/iBoot/LLB) exploit is required to start the restoration of custom IPSWs. The past two jailbreaks (JailbreakMe * absinthe) for the A5 worked within iOS itself. These exploits are not capable of bringing the iDevice into a state where it will accept custom IPSWs. Therefore, an A5 device cannot currently downgrade to an iOS revision that Apple is no longer signing (even with SHSH blobs) and it cannot preserve the baseband when updating to a newer iOS revision.
While the future may always seem to get more narrower... Keep your head high and continue to be open minded.
Report any issues to iH8sn0w via Email (iH8sn0w@iH8sn0w.com) or Twitter (@iH8sn0w)
Download sn0wbreeze v2.9.2