Hello, This will be my first post on MacRumors, i will need you guys help to have iOS 5 firmware on my phone I currently have firmware of 4.3.3 (8J2) from AT&T iphone 4, and it is jailbroken by my cousin. Unfortunately, he is out of country, and i dont have anyone to do this for me. What do i need to do to go to iOS 5? i want to have the latest beta firmware.. Please help!