The HDMI port, SDXC port, and the fins along the top of the heatsink hold the logic board tight to the frame.

Insert your spudger between the middle of the top edge of the logic board and the frame.

Gently pry up until the fins along the top of the heatsink begin to lift from their recess in the frame.

The heatsink fins may catch on the left rubber gasket. Hold the gasket out of the way as you lift the heatsink, if necessary.

Insert your spudger at the top left edge of the logic board and pry it up over the left fan.