place the laptop upside down on a soft, clean surface to avoid scratching

locate the screws (in this case 8)

use the screwdriver

'Note: the screws are designe to stay attached in the back cover even after being unscrewed. This prevents loss.'

use the opening tool to open the back cover starting on the hinge areas. then move slowly around the edges

lift the open areas with your hand (lightly!) and slowly work using the tension along the edges.