iPhone Dev-Team updates UltraSn0w with iOS 6.1 support

The iPhone Dev-Team has released UltraSn0w 1.2.8 to bring unlock support for some older basebands on iOS 6.1.

MuscleNerd commented in twitter:

Version 1.2.8 is compatible with 6.1 main firmware

Supported devices with iOS 6.1: iPhone 4 и iPhone 3GS.
Supported modem versions: 01.59.00, 04.26.08, 05.11.07, 05.12.01, 05.13.04 и 06.15.00.

You can install UltraSn0w 1.2.8 from Cydia (jailbreak required).