Xiaomi 12su selfie turns gray.

This may not be a matter of taking pictures. It may be that the mobile phone has turned on the eye protection mode, and the screen will heat up in the eye protection mode. The higher the level of eye protection mode, the yellower the screen. You can turn off the eye protection mode to see if it is yellow, or you can send photos to other mobile phones to see if it is a problem of taking pictures or turning on the eye protection mode.

If it is not eye protection mode, it may be the problem of adding filters. Turn off all filters and set the brightness, sensitivity, contrast, saturation and color temperature to 0 on the palette, and you should be able to find the problem.

If all the above methods fail, there may be something wrong with the screen of the mobile phone. You can contact the merchant to try.