iOS 4 to 3.1.3 downgrade NO SHSH:)

Hi guys and Girls
This is guide to downgrade 4.0 to 3.1.3 no SHSH

Step 1.Download pwnage tool or sn0wbreeze for 3.1.3 (just google it and you will find many results


Step 2.Download the 3.1.3 IPSW from "www.felixbruns.de/iPod/firmware"

Step 3.After its done open pwnagetool/sn0wbreeze

Step 4.Follow the steps

Step 5.After that go to itunes and connect your device

For windows users :click SHIFT and Restore

For OS X users :Click option and restore

You are all set