I tried to open my pc and when its in the loading there are blue stripes boving around. when loading finished lock screen come for about a blink the screen turns black but i can still log in and play around with the scree. I tried connect to hdml with my television and play around for a hour the problem is gone. But, after 1-2 days the problem went back again. When i press start button the screen blink again and when the app is loading the screen work but when loading finished screen turna black again. I will try to make video that show you the problem