With the plastic opening tool, carefully separate the back cover from the computer frame.

Starting at one of the corners of the computer, work your way around the edge until you reach the other corner.

Do not attempt to pry it open, putting too much force into one location might damage the computer.

As you go around the sides of the computer, free the inside latches with the plastic opening tool.

Once you have an opening, carefully use your hands to separate the back cover.