Aporte original por: rdklinc ,
You need to determine whether it's a keyboard issue or a board-related issue. Pull the keyboard cable and jump the laptop with the power-on pads on the board. If it stays on, you have a bad keyboard. If it still shuts off, you're likely dealing with a board issue. The fact that "holding a key" allows it to stay on suggests you probably have a bad keyboard with a stuck key. Often in that case, holding in a key can temporarily counteract the effect of the stuck key.