Shortly after the release of iOS 4.3.2 yesterday, hackers discovered that the firmware update can be jailbroken successfully with the latest version of Redsn0w and PwnageTool bundles. These are, however, tethered jailbreaks – which means you’ll need to connect your device to your computer every time you need to reboot.
Though it’s possible to jailbreak the latest iOS release, it is still a good idea to stay away from the update for the time being if jailbreaking your device is important to you. There is yet to be an announcement from the Dev-Team regarding a jailbreak for this firmware, and there’s a chance you may lose your untethered jailbreak completely if you upgrade.
It seems Apple is continually working hard to stamp out untethered jailbreaking with new iOS releases. The company started working on the 4.3.2 update the day i0nic’s last untethered jailbreak was released, while a message on Twitter yesterday from Dev-Team member MuscleNerd read:
Apple sure is aggressively patching these untethered jailbreaks lately (but that’s better than lawsuits)
To jailbreak iOS 4.3.2 using Redsn0w, simply run the software and point it at the 4.3.1 firmware, instead of 4.3.2. Please note that at this point this method has only been tested on the iPhone 3GS.
To jailbreak using PwnageTool bundles, you can follow the Redmond Pie how-to guide here.