I have the 3g and it won't allow me to restore it by holding down the power and home buttons. It doesn't do anything. I have tried them all. Also when I plug my iphone to the USB port on the laptop the phone says something about USB Config. And it has 4 options. Mass Storage, Webcam, COM port, PictBridge. I have tried them all and none of them sync with itunes. I another note I also can't delete apps. I hold the app logo and it shakes but never gives me the X. This is why I want to restore it. Also there is a few apps that are in chinese. I don't know if that matters or not but figured anything can help now. The phone has been jailbroken to my knowledge as I bought it off of ebay. I am using it for T-Mobile and need help.