Fix iTunes 9.1 iPhone 3.1.2 Sync Issue With BlackBreeze [Blackra1n RC3 Patch]
Yesterday iTunes 9.1 was released by Apple, and iPhone users who have earlier jailbroken their devices using Blackra1n have been facing syncing issues with this latest release of iTunes.
Thanks to the developers of Sn0wbreeze, we now have a working fix for this iTunes 9.1 sync issue with iPhone 3.1.2 firmware.
Called BlackBreeze, this tool patches the Blackra1n RC3 exe file. Just download and run BlackBreeze, and click on ‘Fix my ra1n’.

Then browse and select the blackrain RC3 file on your computer. BlackBreeze will fix this exe file, and place a new blackra1n-fixed.exe file in the same folder. You can now go ahead and jailbreak your iPhone using the fixed blackra1n.
