OpenCV 4.5.2 cmake

cmake -D OPENCV_ENABLE_NONFREE=ON does not enable it on
HW used Raspberry Pi 4B
OS installed: Raspbian Buster
Try to install OpenCV-Python versions OpenCV 4.5.2 Python 3
I have run cmake with ENABLE_NONFREE=ON
I have verified all cmake compile switches to be valid except for the Non-Free which is still set to NO
Why did this occur?

hey, we still don’t know, what problem your question is about ?
what’s the context ? what do you have ? what do you want ? what did you do ?

we can’t help you like this, please give more information