Android update?

These steps don’t apply to your device? Specifically the screen resolution?

Follow these steps and see if you can adjust your settings:

To change the screen mode on the Samsung Galaxy S5, access the Settings > Display > Screen Mode. You will then see five different selections available, including Adapt Display, Dynamic, Standard, Professional Photo and Cinema. The default screen mode for the Galaxy S5 is Adapt Display, but you can change this by clicking on a button next to the preferred mode.