Mobiles Download

I put my Iphone In Recovery Mode and connected it to Itunes to restore it , so it first deleted all my data and the iphone Software, but when it was trying to install the Iphone software over it, it said an unknown error has occurred and every time i boot up my itunes its stuck in recovery mode. i tried everything and when i connect it to itunes again , it gives me error code try restoring it again , hold center button and top button down together. iPod will restart. Are these steps right, what should I do with my iphone recovery?

I will advise if you can not do iphone recovery by yourself, take it to apple iphone store and let iphone tech people help you recover your it.