A few days ago our engineers received a MacBook Pro with liquid damage. According to the customer the computer was powering on but the screen remained blank and did not respond to any actions. Before bringing their laptop, the customer bought a keyboard for it, assuming that replacing it would fix the issue with the screen. After thorough diagnostics our engineers discovered the laptop had liquid spillage, resulting in failure of the logic board. The keyboard had nothing to do with the screen. The solution was reasonably simple; the motherboard had to be replaced in order to bring the MacBook back to life.