Insert a pick between the bottom cover and the outer frame. It's easier to start near the top, where your pick can sink deeper and provide more leverage.

Pull the bottom cover up by prying with your pick. You will hear clicks or pops as clips release; this is normal and non-damaging.

Once your first pick is wedged between the cover and case, insert a second pick nearby. Slide it around the perimeter, prying as you go to release more clips.