Error installing IOS 5.1

I've just got an e-mail with a question. It is probably not an unique problem, Apple's Servers Giving Errors to iOS 5.1 Upgraders.



I recommend to try first time to restart completely your device. Probably it was a connection error, so try rebooting your device and trying again. Please also verify your internet connection.

 If this will not help you, and still persist error while installing IOS 5.1, please check if there are uninstalled updates to your device. I can also recommend you a video about installing IOS 5, so please verify the steps you made. I hope it will help to fix this problem.