my iphones touch screen stopped responding???? any ideas..my cell is not dropped yet not a scratch on it...any idea???

enter DFU mode and try 1.1.4 restore.

Repaired a İphone before it has an issue the screen on top not responding but down works fine.Done everything but This is not software problem.Unless Opened and found that screen and the logic board got a short circuit.Changed them now working flawlesly.We dont know what cause this because its not dropped before.

GOOD LUCK

On one of my first iPhones the bottom third went "numb" without any obvious physical damage. I strolled into my near-by Apple store and they swapped it out within five minutes.

What part of your screen is having issues, exactly?