Which orientation of flex cable for Pi3?

[xandark]

I cannot find which orientation to install the ribbon cable into a Raspi3 from the "Connect the camera" documentation here.

Does the pin side of the cable go up? Or down? The video only shows for the original Pi, and has a footnote for the Pi5, which is not helpful for the Pi3.

[lurch]

See also #3915
Basically the "flap" on the CSI (or DSI) connector on the Raspberry Pi board is always on the opposite side to the metal contacts on the FFC cable.