The complete Guide to Jailbreaking your iPhone/iPod Touch

There are many ways of Jailbreaking your iPhone/iPod but unfortunatly Apple has made things slightly more difficult for the standard user by using different baseband versions, bootloaders, serial numbers etc. etc. etc. Many of these details factor in the method of Jailbreaking and the firmware necessary to do so. But for me, the easiest method was to use Geohot's blackra1n un-tethered and Blacksn0w Jailbreak along with the iPhone/iPod Touch firmware 3.1.2. and iTunes 9.0 (or higher). I personally haven't had any problems with jailbreaking, none-the-less, you should install the jailbreak at your own risk.

Please Note the following:

-Jailbreaking software is COMPLETELY FREE, if you paid someone for it, demand a refund.
- Jailbreaking lets you completly customize you Device with wallpapers, custom themes, settings, tweaks, free apps, the list goes on...
- Jailbreaking and then installing sn0w on your iPhone lets you unlock your device and use it on almost any network and use almost any SIM ( Tweaks from Cydia allows you to tether your iPhone to your PC or Mac which is normally only permitted with the AT&T network.)
-DO NOT upgrade your firmware to 3.1.3 as this version was released mainly to kill the jailbreak. If you already have it installed then you can easily downgrade by following the steps below.
-You cannot upgrade your firmware with the jailbreak installed. You must first restore you Device, Update, then Re-Jailbreak if possible.
-Jailbreaking will void your warranty but the geniuses at Apple can't tell if you restore afterwards.
-Jailbreaking may slow down your device but this will barely be noticeable.

Requirements
-iPhone/iPod Touch
-PC/Mac
-Apple iPhone/iPod Touch firmware 3.1.2 (Download here)
-USB Cable
-Blackra1n

Steps

-1. Download Apple iPhone firmware 3.1.2 and Up/Downgrade by opening iTunes (with your device connected), holding shift, selecting "Update" and selecting your firmware you previously downloaded. Now wait for you device to finish updating.



-2. Download and run Blackra1n with your device connected. Select "make it ra1n". The jailbreak will be installed and your device will reboot.


-3. You will now see another icon on your device's springboard. Select it and install the packages you want. (For the Tweaks etc. download "Cydia" and if you want "Rock", to unlock your iPhone download Sn0w.) You must install the packages ONE AT A TIME.



Congrats, you device has been Jailbroken!