I have the same problem. I disconnected the battery and my game pad doesn’t have a screen protector on it and the buttons are clean. The problem is using it during Mario Kart when you need to hold down the A button to drive. It works and cuts out every couple seconds even when I’m holding the A button down. I’m not really sure what’s wrong with it and I’ve tried all these suggestions, it’s only the A button that seems to cut out and do this.