Carrier Unlock for AT&T iPhone 4 is Only a Step Away! [Video]
The most vocal of all iPhone Dev Team members – MuscleNerd today updated on the whole iPhone 4 unlock situation which he has been working on with @planetbeing (of Android port for iPhone fame). For those of you who don’t know, carrier unlock for US iPhone 4s on AT&T requires complete rewrite of ultrasn0wsoftware because of the new baseband OS in iPhone 4. According to a recently published report on ModMyi Forums.
Click here to see the image in iPhone 4’s full high-res (960 x 640)
The DevTeam and others have been checking through the iPhone 4, and have noticed the baseband runs a completely different OS than on previous models. The iPhone 3G and 3G[S] both ran Nucleus OS on the PMB8878 baseband CPU (aka XGold 608), where the iPhone 2G ran the PMB8876 (aka S-Gold 2). iPhone 4 uses the PMB9800, or X-Gold 618 – running a separate OS – ThreadX, an RTOS by ExpressLogic.
After almost a week of hard work, they are now a step closer to getting iPhone 4 fully unlocked so that you can use it on any carrier you like.
Good progress on iPhone4 unlock with @planetbeing: http://is.gd/dh2WE <-injected cmd! (Akin to http://is.gd/dh2Ze on 3G)
Next step is to keep the task backgrounded like we did for 3G/3GS http://is.gd/dh7Jh. Backgrounded task is the unlock.
And here are some of the videos which shows 3G baseband tool, and persistent nucleus tasks in action.