Download from here : http://euploadcool.com/Lira90612/iPhone This video will show you how to Jailbreak and Unlock your iPhone 3G on iOS4 (4.0/4.0.1 firmware) using Redsn0w and Ultrasn0w. In Redsn0w, you can enable the background wallpaper, Multitasking, and Battery Percentage.