Answer to: Why does home button when pressed affects the lcdI am facing similar issue too. My iphone 5s has never been opened and this effect has started appearing since 1-2months. In my case whenever i press the home button, the screen right above it shows rainbow marks. I tried pressing at other points too to see if the screen reacts again but it showed those pressure marks at same point despite being pressed at different places on phone. When i press the back of the phone, then too pressure marks appear at same point. Is there a fix ?