My father recently purchased a new Lenovo Y550. It was working fine for almost two weeks and after getting some issues relating to power up. Pressing the power button, the LED lights on the laptop, but will not be displayed on the screen. I am also able to hear the sound processor. After this wait for several minutes, turn off the power. Then power up and press the button. Now we start to work well without any problem. What happened the first time?
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