There are 6 rubber screw covers to remove. If you have trouble removing them, I used a thin, sharp tool (tiny screwdriver) and pushed it into the edge of the cover and dug it out. You might damage the cover, but the function will essentially be the same.

There are a total of eleven screws you need to remove. HP has helpfully grouped them by screw type into three groups, (1), (2), (3). I used the regular iFixit kit, and found that the screw driver was too short to reach one of the screws in group 2. To fix this, I had to widen the hole slightly so it could reach.