Today, Ulrasn0w has been officially updated to unlock iOS 4.3.2 on new firmware.

Recently, the unlock for iOS 4.3.2 was not available. A developer ‘DjayB6’ released a version of ultrasn0w called ‘ultrasn0w fixer’ that unlocks iPhone on selected basebands.

- Ultrasn0w unlocks iOS 4.3.2 on devices with the following basebands.
01.59.00
04.26.08
05.11.07
05.12.01
05.13.04
06.15.00

- Ultrasn0w does not unlock iOS 4.3.2 on devices with the following basebands.
02.10.04
03.10.01
04.10.01
05.14.02
05.15.04
05.16.02