ios update came up with itunes and usp logo

I had an ios update called IOS7.1 and when completed it came up with the itunes and usp cable logo so I plugged in my iphone 5 to the computer and it said on on my laptop itunes something like "Restart your iphone, you will have the option to get all pictures/contacts"... so I did and on the activation page it said apple Id and password, I put in my apple id and password and it said its disabled? I dont know what to do help