Unfortunately, Musclenerd of iPhone Dev team has confirmed that they do not have working exploit for unlocking iPhone 4 on new basebands 02.10.04, 03.10.01. However, he has chosen an alternative approach for unlocking it by downgrading its baseband. Musclenerd has clarified that the exploit they have is SIM-dependent. Which means, it works on one of the T-Mobile SIMs, but does not work on another. They also developed a method where you could “fix” the SIM to work with it, but its far too complicated to be released for the jailbreak community with majority of the average users.



If you are on the 01.59 baseband then you can still use ultrasn0w to unlock your iPhone if you preserve your baseband with the PwnageTool. We will keep you updated when we hear more on the unlocking situation, until then let us know if you are waiting on the new iPhone 4 unlock.