iOS 4.3 GM [Gold Master] version is already jailbroken using PwnageTool on Mac . Released yesterday the gold master version gets tethered jailbreak and needs additional jailbreak utilities than you ever used [Pwnage Tool , Pwnage Tool Bundle for iOS 4.3 , Universal Ramdisk Fixer , Tethered Boot Utility ]. Not to mention you need access to a developers account for downloading iOS 4.3 ipsw and latest version of iTunes 10.2 .
Initial reports confirm that Cydia is working fine on iOS 4.3 jailbroken iphone 4 and the baseband will not upgrade if the steps are followed correctly during the Pwnage Tool jailbreaking .
Our recommendation is Stay Away from any upgrade before we explain you how to build custom firmware with step by step Pwnage Tool Jailbreak and Firmware upgrade tutorial .
Please note that Gold Master Firmware Downloads are only available to developers with special access to pre-release version of iOS . Apple announced the public release of iOS 4.3 to be on March 11th and made iTunes 10.2 available for download . To get these updates via email , Subscribe Here . Follow us on Facebook .