I bought an iphone with 1.1.1 on it, i got it downgraded to 1.0.2. i also got the baseband downgraded. but now i am trying to unlock it and i cant get unlock.app to work. i click on it and a white screen comes up and then closes in about 20 seconds. it never says anything, and nothing happens. please let me know what i need to do. Thanks, Jared