Red layer on screen

[St7]

My screen phone starts to have a red layer from 20:00 to 8:00 of the next day...

[CameronT]

Hi @St7, welcome to the community.

It sounds like you have an application such as f.lux or Twilight or somethings similar enabled on your phone. These apps will adjust the colour of your display at certain times. The idea is to prevent eye strain at night.