@sally21 skip the rice. It does not do anything other than giving you a false sense of accomplishment. It does not work. I suggest you treat it just like any other water damaged iPhone. The very first thing you want to do is to not try to restart, sync or otherwise try to use the phone. This may further damage your phone. The next thing to do is to clean it. Disassemble your phone using [this guide REmove all EMI dhileds. Then clean it with +90% isopropyl alcohol. Follow this guide , and even so it was written for a 3G all the points are still pertinent to your phone. While you clean your board, check for any obvious damage, like burned or missing components etc. When it is properly cleaned, replace the battery. All these steps are to avoid delayed failure caused by corrosion. Once all this is done, reassemble your phone and reevaluate. In your case it is possible that either the touch screen has failed or the touch IC on the board has failed. Replace the display assembly and see what you get. Hope this helps, good luck.