With this update it is now possible to jailbreak your older iDevice untethered on iOS 5.1.1. The Absinthe 2.0 jailbreaking utility supports the iPod touch running iOS 5.1.1.
Here is the complete tutorial to jailbreak iPod Touch 4G on how to achieve this:
You will need to download the following:
Download Absinthe v2.0.4 for Mac, Win and linux
1: First and foremost backup your device via iTunes or iCloud.
2: Plug in your device to your computer.
3: Run the program Absinthe Jailbreak 2.0 and hit the Jailbreak button. If your device is connected then you will be able to press this button.
4: The status will now read “Restoring in Progress” and once its finished then your device will be jailbroken.
Once this process has been completed the cydia icon should appear on your device.
This means that your device has been jailbroken successfully.
If you get an error that there was an error contacting the database then simply on your device goto Settings> Turn on VPN
This will give you an error for configuration but your device will reset and it will be jailbroken with the cydia icon onscreen.
One thing to be mindful is to trust the process even if you think something has gone wrong till it is completed. The time taken to complete each step of the jailbreak process depends on how much data there is currently on the device. Unless and until something has gone wrong be careful not to unplug the device till the cydia icon appears on its spring board.
If at the end launching “Absinthe” seems to do nothing then again go to Settings and turn on VPN on the device. Here the device will reboot and you should see cydia on it. Do not disconnect before you see the icon.
Still if you are having any problems reset the device and launch Absinthe 2.0 to try again. The program will tell you that it needs to recover the jailbreak process. Let this process complete and then reconnect your device to continue the jailbreak process.
If your Absinthe 2.0 program is crashing on OSX then make sure you have admin privileges. At times it has been seen better to be in the root user profile in OSX while using Absinthe 2.0. You can grant root access simply by the following steps:
Open “System Preferences” and choose “Users & Groups”
Click the padlock and authenticate to unlock the settings
Choose “Login Options”
Click “Join” (or “Edit”)
Click “Open Directory Utility”
Click the padlock and authenticate to unlock the settings (if required)
From the “Edit” menu, choose “Enable Root User”
Enter a password for this user profile.
If the program is crashing on a Windows system then just make sure you have admin level access.
If you are using Windows Vista or 7 then you should run it in compatibility mode by right clicking on the EXE file, choosing “properties” switching to “Windows XP (Service Pack 2)” under the Compatibility section and once this is done make sure to right click the EXE file and select “Run as administrator”.
Jailbreak iPod Touch 4G