Hi Guys
There are a couple of options here:
1 - If you are already tethered Jailbroken on iOS 5.0.1. Then all you would need to do is install Corona from Cydia. Once installed and rebooted (or respring), you are fully untethered.
But most of us, need to use Redsn0w after updating to 5.0.1
Ingredients- Get your iOS 5.0.1 IPSW firmware from here:
http://www.icj.me/ios -
BE SURE TO SELECT CORRECT DEVICE!!!
- Latest iTunes (v10.5.2.13)
For A4 iDevices- Redsn0w v0.9.10b4 - from here
https://sites.google.com/a/iphone-dev.com/files/home/redsn0w_win_0.9.10b3.zip?attredirects=0&d=1For A5 iDevices- Absinthe for Windows - from here
http://cache.greenpois0n.com/dl/absinthe-win-0.2.zip
Backing UpBefore updating any firmware, I always do a full backup in iTunes (mine goes to the cloud), then I do a Sync also, and take note of my Cydia apps, etc.
Updating1. Update your iOS by plugging your iDevice into your PC and holding down shift and then clicking the restore button.
2. Point iTunes to wherever you saved the iOS 5.0.1 IPSW.
3. iTunes will proceed to update your firmware.
You could potentially become stuck here and be faced with multiple error codes (if you jailbreak a lot). You will need to close iTunes, and then delete the Hosts file which can be found here:
C:WindowsSystem32driversetc - and delete the "HOSTS" file.Restart your PC, just to ensure that it will work. Restart iTunes, and start from number 1 again.
4. After iTunes has updated your iDevice, it will reboot the iDevice. Once it has booted, it will ask you to begin setting up the iDevice as if it was new.
Obviously, we have a restore that we just did prior to the update, so begin to restore from that.
5. Your phone should be back to how it was before we updated, without the Jailbreak stuff of course. Thats next....
Jailbreaking A4 iDevices1. Firstly unzip the Redsn0w app.
2. Put your phone into DFU mode by doing this:
Holding both the Home Button and the Sleep Button, let go of the Sleep Button when the screen goes blank (around 10 seconds), continue to hold the Home Button for another 5-10 seconds.Your iDevice should be in a DFU state, black screen, looks dead.
3. Now begin redsn0w.
4. Click the following:
- Jailbreak
- Next
- Install Cydia
Then follow the steps.
5. Redsn0w will proceed to jailbreak your iDevice, the Pineapple is a good sign

6. When finished, the iDevice will reboot, and Cydia should be on your home screen.
7. Proceed as normal.
Jailbreaking A5 iDevices1. Unzip Absinthe
2. Plug in iDevice
3. Start Absinthe, and follow the onscreen instructions.
4. Done! (yes very easy)