Hi all. I cannot update to iOS 5.1.1 on my Jailbroken iPod touch 4. I have tried on a pc but get an error message saying that it could not download the update software. I have tried turning off the firewall but it did not help. I have also tried updating on the device itself, but failed after about a minute. I have tried changing the dns to 188.8.131.52 and going to a faster Internet connection, but it only got about halfway before failing. (I have tried about 5 times!!!). Thanks for reading all of this, haha, but I'm having problems.