It doesn't get easier than this: http://www.modiphone.net/guide-official-113-jailbreak-released-on-installerapp/ Update: The script has been fixed! Sorry for any inconvenience. No harm was done to your iphone/touch. Please note, "Executing script..." can take a LONG time. You need a proper wifi connection since it downloads the the firmware from Apple, decrypts it, patches it, and installs it. This is why it takes so long. Luckily it's fully automated. It may be best to turn auto-lock to NEVER while you perform the update.