Downgrade Any Firmware iPhone Or iPod Touch 3G 3GS 3.1.3

How to downgrade your firmware from 3.1.3 to 3.1.2 using windows on all devices- ipad, iphone, ipod touch 2g, 3g, 3gs. ***IF YOU CANT DOWNGRADE, Just Use NEW "Spirit" Jailbreak to Jailbreak ANY device untethered!! Link is Below! FIRMWARE: http://www.felixbruns.de/iPod/firmware/ JAILBREAK ANY device, 3.1.3, Untethered: http://youtube.com/watch?v=8Aqcv7UpQ7g How To Jailbreak: http://youtube.com/watch?v=orYekndNOxU