Dev-Team has made available an update to its tool unlocked iPhone, I appointed UltraSn0w . Many people were waiting for this update of the software (v1.2.1), which becomes compatible with iOS 4.3 / 4.3.1 but does not support new basebands . Here is a list of supported basebands: 01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00 . The version of the baseband of your iPhone is available by going to Settings> General> About> Prog. modem .
