display rotation

I've just noticed that on viewing a video clip from my M6 Plus that it's rotated 180 degrees; do you know a way to correct this as I don't have access to the user manual anymore?

Hi All, first time posting. I recently have started toying with firmware for my 0805 to see if I could get the menu option to rotate the display as the pdf for the 0805 clearly states "2.5.23 Setting Display Rotation". I have loaded multiple firmware versions found here and there and no luck...