The iPhone Dev-Team has released Redsn0w 0.9.6rc13 to include support (except for iPad 2) for untethered jailbreak on iOS 4.3.2 using the same i0n1c’s exploit which was used to previously untether 4.3.1. Support for iPhone 4 isn’t included yet due to a known problem.
iOS 4.3.2 was originally jailbroken last week using PwnageTool bundles (on Mac) but it was limited to tethered boot. But now with this latest version of Redsn0w, you can jailbreak your iPhone, iPad, and iPod touch fully untethered on the latest iOS 4.3.2 firmware.
NOTE: Those of you who rely on a carrier unlock MUST STAY AWAY from Redsn0w and stock iOS 4.3.2 firmware.
How to jailbreak iOS 4.3.2 using Redsn0w on Windows and Mac:
Step 1: Download iOS 4.3.2 for iPhone, iPad or iPod touch. (download links given at the bottom)
Step 2: Update/Restore to iOS 4.3.2 firmware using the IPSW file you just downloaded via iTunes 10.2.2.
Step 3: Start Redsn0w and point it to the official iOS 4.3.2 firmware file.
Step 4: Now select “Install Cydia” and click “Next”. Optionally (if available), you can also select any other option you like.
Step 5: Now make sure your device is both OFF and PLUGGED IN to the computer before you click “Next”.
At this stage you will be presented with a screen where you will be guided on how to enter DFU mode. Quickly hold “Power” button and then while holding the “Power” button, you will now have to hold “Home” button too. Now after few seconds release “Power” button but keep holding “Home” button until installation begins.
Step 6: Sit back and enjoy while Redsn0w does the rest for you. Once done, your iPhone, iPad or iPod touch will restart automatically and you will find it fully jailbroken (untethered) on the latest iOS 4.3.2 firmware.