I have an iphone 4s at and t. It is 5.1 currently. I have tried to upgrade it to 5.1.1 (6 is out already). When I do I get the error 1394. I read a million topics and tried other things and only get as far as having error 11 when using tinyumbrella. Thi has never been jb before. I have deleted all in hosts files that contain anything apple and I have even tried to add the other url. Any suggestions please. I know how to upgrade firmware from itunes while pressing shift. I have the correct firmware downloaded. Please please,

Mr. Coffee