Use your T5 Torx driver to remove the 13 screws securing the trackpad:

Ten 5 mm screws

Three 5.8 mm screws

These screws all look similar—be careful not to mix them up.

During reassembly, center the trackpad in the frame before fully tightening the screws.

Adding a little blue threadlocker to the screw threads during reassembly can help prevent the screws from working themselves loose over time.