Screen going blank
I am using Note3 with Andriod 4.4.2 and a original Samsung Flip cover. Of late, I have started facing a strange problem. Whenever phone is lying idle and I get any msg or incoming call and I open the flip cover, I find screen going completely blank. I start fiddling with all the buttons and touch screen but screen does't come alive. The menu button and undo button will light up on touching but beyond that nothing will happen. This continues for many agonizing seconds and if I am lucky screen comes alive. But many a time it does't then I have to long press power button to get the phone restarted.
It happens randomly. I noticed that whenever it happens the top half the screen gets warm. Initially I suspected that there is some problem with flip cover and the phone cant sense properly that it has been flipped open. I removed and put back the flip cover few times and thought that the problem is rectified but it hasn't. There seems to be some other issue. Can anybody help in this matter?