iOS Hackers do not remain calm while in usual days just for you. All the time they try to work for you without any profit. As WWDC 2012 is so near but still Jailbreaks are updating regularly. You know about the previous update by iPhone Dev Team for A4 Rocky Racoon 5.1.1 untether. That was a big update but this time iDev Team updated their Jailbreak tool with minor updates. Now latest RedSn0w is RedSnow 0.9.12b2. RedSn0w 0.9.12b2 supports all A4 devices wnd rocky raccoon 5.1.1. RedSnow 0.9.12 b2 has new option for Rocky Racoon 5.1.1 injection. So if have already jailbroken your idevices then there is no need to rejailbreak. RedSn0w 0.9.12 beta2 has also fixed the iBooks issues which were faced by users. Detail for RedSnow 9.12b2 are given below.
RedSn0w 0.9.12b2 Release notes
Starting with version 0.9.12b2, redsn0w will now explicitly ask users with limera1n-able devices whether they want to inject rocky-racoon using the DFU ramdisk method or the backup/restore method (the ramdisk method is better for those with lots of media on their device that would create very large backups, and it’s required for those with unactivated iPhones). If you’ll always want to use limera1n, you can select that in the Preferences pane. It also fixes an iBooks issue on old-bootrom 3GS iPhones, and provides more useful error messages when things go wrong.
Download Links for Redsnow 0.9.12b2 for Windows and Mac are given below.