iPhone Dev Team has released the Ultrasn0w 1.2.2!
Making it compatible with the most recent iOS 4.3.2 firmware.
Instead of ultrasn0w fixer for unlocking your device on iOS 4.3.2 running old baseband,
you may now use official ultrasn0w.
According to iPhone Dev Team, Ultrasn0w update is just a compatabilty update and there is NO new baseband support.
The official ultrasn0w 1.2.2 will only support:
iPhone 4 baseband 01.59.00
iPhone 3GS basebands 04.26.08, 05.11.07, 05.12.01, 05.13.04 and 06.15.00.
Baseband 05.14.02 and 05.15.04 are still locked and you must update your iPhone 3GS to baseband 06.15.00 and then run ultrasn0w 1.2.2 to unlock it. (This method restricts you to use GPS usage)
The tool does not unlock iPhone 4 basebands 2.10.01, 3.10.01, 4.10.01.
Follow this video tutorial that will show you how to Unlock your iphone 4 and 3gs on firmware 4.3.2: