You have the ISO Setting set too high. This is the setting that in a film camera was called 'film speed'. The higher the ISO, the better it will take pictures in low light. Yours may be set to 3,800 ISO, when it needs to be on 200 or 400. The light during the day is bleaching out the sensor and that is what you are seeing on the screen. Also the higher the ISO, the more grain you will see in images.
https://photographylife.com > Photography Tutorials
Sep 4, 2017 - The lower the ISO
number, the less sensitive it is to the light, while a higher ISO
number increases the sensitivity of your camera
. The component within your camera
that can change sensitivity is called "image sensor" or simply "sensor".
. ... Film speed
is the measure of a photographic film
's sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO
system. A closely related ISO
system is used to describe the relationship between exposure and output image lightness in digital cameras
Film speed measurement ...
· Film sensitivity and grain
· Digital camera ISO speed ...
As I explained
in How Film
Works, photographic film
is made up of millions of light-sensitive silver halide crystals, which we call grain. The lower the film speed
film iso explain in digital photography Google Search