Step 3:

DOUBLE CHECK that no more screws attach to the laptop, carefully insert the smallest Flathead screwdriver between the laptop LCD frame and the screen.
(If all screws are indeed removed, the LCD frame should be loose. When inserting the screwdriver, be very careful since the flathead could damage the screen.)

Move the screwdriver along the LCD frame slowly, this will slide the frame open. (It is not over yet, for this specific model, there are some other places you need to looking into in order to remove the LCD frame)