ultrasn0w 123 200x300 UltraSn0w 1.2.3 supports iOS 4.3.3 with old basebands

Ultrasn0w was updated to support old baseband on new iOS 4.3.3.

Here is the list of supported basebands:

  • iPhone 4: 01.59.00
  • iPhone 3G/3GS: 04.26.08, 05.11.07, 05.12.01, 05.13.04, 06.15.00.

Ultrasn0w 1.2.3 (for unlockers with old baseband) is available in Cydia.

You can update to iOS 4.3.3 and preserve old baseband using two utilities. Here are step-by-step instructions:

PwnageTool 4.3.3.1 (Mac OS)

Sn0wBreeze 2.7.3 (Windows)