Yellow tint on the screen of my Galaxy S5

[AC Question]

So just today my Galaxy S5 got a yellowish tint (sorta like the one that f.lux gives you)

I don't think it's a hardware problem as when I open the Settings app it reverts to the normal color, but when I close it the tint reappears.

Any suggestions? Thanks.

 

[Tim1954]

Have you got apps like Twilight on the device? Which screen does this occur on?

 

[Tim1954]

If you open your dial pad and input *#0*# will open the service menu, and there you can check the screen colours. Be aware that dialling the wrong code can do mischief... This one is inoccuous enough...