My iPhone touch screen is not responding! IPhone 4S?

I changed my screen last night and accidentally ripped the digitalizer cord on my new one, so I had to put my old one back in. The old on was working fine before, it was just cracked. And now when everything's back together the screen has stopped responding to touch. The screen lights up and everything, but I can't touch anything at all. It won't respond. I restarted the whole phone, and also reset it. But it still won't respond to touch! Please help!

Added (1). I also restored it, still not responding

Restore it

You may want to try these:
http://appletoolbox.com/2012/10/black-or-blank-screen-on-ipad-or-iphone/

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