Rear facing camera not working after screen replacement.

Like the title says. I ended up having to replace the back housing as well and of course transferred both cameras and the front sensor strips. I also transferred the logic board, charging port. Everything works fine as it did before but the rear facing camera doesn’t work. Neither does the rear facing light or LIDAR.

I have an aftermarket rear facing camera and tried that as well; still no camera.

I completed an iOS update and also checked the privacy settings but they are all good.

Any Ideas?