I tried to update my iphone4s, but then cancelled the update by resetting the phone, it is now not getting past the apple screen. I have tried resetting it again, but no luck, it also is not appesaring on my itunes for me to restore it. Do you have any advice?

I tried to update my iphone4s, but then cancelled the update by resetting the phone, it is now not getting past the apple screen. I have tried resetting it again, but no luck, it also is not appesaring on my itunes for me to restore it. Do you have any advice?