Have I bricked my iphone?

[vamos124]

Hi guys I tried to jailbreak my iphone 3gs which was already updated to 4.3.5 when I got it, so I had to use redsn0w which seemed to work, however firstly I cannot open some apple software such as, app store, settings and itunes, however I can open everything else, and I can also open Cydia. Therefore I tried to restore the iphone so that I could use everything again.

However in Itunes my iphone does not appear or anything, when i plug it in its like nothing happens. However the sound still comes when I plug it in, and so does the Iphone autoplay. The phone is also fully recognised in Tiny Umbrella, its just itunes that cant pick it up. So what can I do at this point? Is there a way of restoring the iphone?

Thanks