Remove the following five Phillips screws:

Two 2.5 mm screws set into the left edge of the rear case

One 2.1 mm Phillips #000 screw set into the left edge of the rear case

Two 2.1 mm screws set into the right edge of the rear case

If you overtighten these screws during reassembly, your power and volume buttons may not click properly. Check the clicking action on each button before you continue with reassembly.