Moving on. Here is the connector for the HDD's ribbon cable. The black portion slides out (towards the hdd) to release the cable.

Using a pic (or other narrow item) gently push the black slide outward (toward the drive). If you have long fingernails, you can likely just use your fingers.

(Note the open position of the connector in the third image.)

Now we nudge the hdd out of it's frame. I can't show you with my little camera, but there is a notch on either side of the hdd. Reach a separator tool into there and lift carefully.