Macbook Pro Keyboard Y Key stopped working, but when I connect an external keyboard USB one, it is working and the Y is coming fine. Why is that ? Does that mean the Macbook Pro Y key is dead ? My Macbook Pro is Late 2013, that means its no more in warranty. Will they replace the keyboard or just fix it ? Its my main computer, so I cannot keep it with them. Lets first figure out why it happened. Is there a way to know that yes its a hardware fault or something ? Any Apple tricks ???