Hold the display with one hand while removing the following 3 screws from the left hinge mount:

One 7.2 mm smaller diameter Phillips from the right side.

One 5.2 mm larger diameter Phillips from the middle.

One larger diameter 10 mm Phillips from the left side.

Before removing the left hinge mount, take care to see how its pieces fit together, including the small white plastic piece. Knowing how the mount pieces fit together will help with reassembly.

In 2009 models, the shape of the left hinge mount may be different than shown in the photo, but the locations and sizes of its screws are the same.

Lift the left hinge mount with white plastic piece out of the computer.

Check that the cables coming out of the right end of the left hinge are not trapped under other cables.