Fred, the very first thing you want to do is to skip the rice. Rice does not do anything but gives you a false sense of hope. It will not fix your phone or stop corrosion. what you want to do is to clean your phone with 90%+ isopropyl alcohol and a soft brush after you disassemble it with the help of [guide|19209|this teardown]. Check for any burned, charred or missing components. Once you have itr cleaned, you want to reassemble and reevaluate. If your image should still be foggy etc. I suggest to replace the display assembly. Hope this helps, good luck.