1. You must update to iPhone 3.1 first. After updating, either locate your iPhone 3.1 IPSW file or download it using any of the links below. Remember, don’t use Safari to download. Safari can’t download .IPSW files properly, use a different Broswer
iPhone 3.1 download (iPhone1,1_3.1_7C144_Restore.ipsw, 241 MB)
iPhone 3G 3.1 download (iPhone1,2_3.1_7C144_Restore.ipsw, 242 MB)
iPhone 3GS 3.1 download (iPhone2,1_3.1_7C144_Restore.ipsw, 306 MB)
2. Download redsn0w (not up yet, stay tuned!).
3. Follow the jailbreaking guide at the Jailbreak iPhone 3.1 post (not up yet).
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