My phone has a few deadspots, one in the middle of the keyboard, and on on the spacebar. it seems on and off, but latley it has been getting really annoying. Also, the touch screen sometimes goes crazy, random letters will start typing when im not even touching the screen. For example, my phone will start typing random letters, so i go to hit backspace, but instead the phone reads it at as me hitting the "C" key over and over. To sum it all up, typing is a disaster. and sometimes i cant even slide through the screens without my phone clicking random things. What can i do to fix it?