Hi im after a little advice, I upgraded my iPhone 2g 3.0 to 3.0.1, but since doing it I cant receive text messages or I do but they arrive about an hour late, also people are having trouble tryin to ring me it just wont work. So I want to go back to 3.0 but not quite sure how to do it. Can I just load up itunes and hit shift and choose my 3.0 firmware and restore and then just use redsnow 0.8 to jailbreak and unlock. Or do I have to do it another way.

Hope someone can help.
Kind regards