samsung s20 plus screen problem green/white/horizontal line where and how to fix instantly

Problem is from samsung customisation service

Go to settings chose "privacy"
Then at look for written "Samsung" and go to "customisation service" just the "Samsung" part,not the google!!
After that turn off the "customise this phone"
After that see below click/press the "Erase your data"
And lastly click/press the "Stop customising all devices"

Most important dont mess ur phone default setting,let it be just like factory settings
With the default apps that need to download by google and samsung and update all of apps in galaxy and play store...
dont change anything like inside apps manager,if u mess with it ur phone screen doesn't show normal like 1st buy it

If u mess with ur settings even the apps manager,i suggest u hard reset "volume up+power" factory reset
After that let the suggestion apps by google and samsung download all 1st,then update all in galaxy and google play...after that do the privacy samsung things like i mentioned at top

If u can't see ur phone,keep calm and look carefully...suggestion to see even a little words "dark mode,60hz,adjust screen brightness manually around 0%-50% which u can see the words even just a little
Dont rush or panic