Worked great; display is no longer intermittent. Penryn model, all screws were #0. Took a few photos to help on reassembly, and made a couple of missteps: plugged in optical cable before hard drive cable, and had to backtrack one step; and put the 3 battery compartment screws in the wrong holes; had to take them out and put them in the right holes so the shield screws had empty holes. Took me 6 or 8 hours over three days. Thanks!