Notice the space and socket for M.2 SSD (42mm or 80mm) between the HDD and the battery! (Screw needed.)

Another good place to start is at the USB port near the SD card slott. Work toward the hinge first, then back down the short side. There are 5 strong tabs on each short side, and several weaker tabs on the front and between the hinges. The tabs are attached to the bottom. Once one short side is nearly free and the front seam is not totally closed, then try pushing the bottom toward the free short side (at most 1/2 mm) which can make the other tabs easier to “pop”.

Some conventions say to gently disconnect the battery cable from the circuit board before working with other cables.

The two pads on the hinge side.

Avoid touching the bottom (circuit board) on a harddrive; it might not be dead yet! Grasp the harddrive between thumb and fingers on the [longer] 9.5mm edges.