If there is no response after you press a button, but other buttons are functioning normally, this is probably the failure of that metal dome. Metal dome failure means that the shrapnel in membrane switch has lost its elasticity. When you press the button, the upper and lower circuits are not turned on. The membrane switch can not work. We can directly replace metal domes. After that, make sure that the installed metal dome can work normally. You need to do a test, and then put the graphic overlay back. Then, the membrane switch works smoothly.