Completely power off and unplug your MacBook Pro before you begin.

Close the display and flip the entire laptop upside-down.

Use a P5 Pentalobe driver to remove six screws securing the lower case, of the following lengths:

Four 4.7 mm screws

Two 6.6 mm screws

Note the orientation of the screws as you remove them—they need to be reinstalled at a slight angle.

Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from to avoid damaging your device.