Absinthe 2.0.4 Tutorial Untethered iOS 5.1.1 Jailbreak
Here is a tutorial on how to perform an untethered 5.1.1 jailbreak on most devices supporting the 5.1.1 firmware besides the AppleTV using Absinthe 2.0.4. We recommend doing a fresh restore of 5.1.1 before jailbreaking(although it not required), if you are currently tethered jailbroken on 5.1.1, you can use the Rocky Racoon 5.1.1 Untether.
Step 3: Connect your supported iOS 5.1.1 device and Absinthe should display the model and iOS of your device.
Step 5: Click the jailbreak button in Absinthe to initiate the process.
Step 6: Your device will appear the same as it does in the case of a normal firmware restore.
Step 7: Once your device reboots you will now have Cydia on your springboard.
Step 8: Once Absinthe tells you that the jailbreak is complete, you're all set, you can now close Absinthe and you are successfully jailbroken untethered on iOS 5.1.1!
Step 9: Open Cydia and let it configure itself for the first time. Congratulations, your iOS 5.1.1 device is now jailbroken untethered!