Restoring problem of IPAD 3 5.1.1

HI to everybody.

Yesterday i jailbraked my Ipad 3 with redsnow. I wanted to have a siri in my Ipad, but something went wrong and now i am facing withe a problem that i cant solve.
My ipad is not opening home screen. It is continiusly restarting. I tried to restore with Itunes but their is a problem this device isn't eligible for the requested buIld. How to recover my Ipad please help me...

Try using the steps outlined in this tutorial: http://www.ipadforums.net/jailbreaki...rsion-ios.html

If you follow the steps exactly, you should end up with a stock iPad running iOS 5.1.1.

Good luck and let us know how you get on.

Marilyn