I like the night mode better, because the colors are way warmer. I think the basic setting of the blackview bl6000 is too cold.
Is it possible to use the night mode all the time?

I was always using the camera app with my samsung. Blackview does not support this. Hopefully in the next update. I now use qr scanner from Teacapps. it works fine

When using a qr-app, the camera is not focussing.