Blue light filter issue

[ihsanul09]

I just buy the brand new galaxy A51. I'm facing a display problem now. The blue light filter doesn't work well. It doesn't work on my lock screen and sometimes I'm facing it on my home screen also. How to fix that?

[EatMyConfidence]

@Samsung 

What is the point of the filter then?

The whole point of a blue light filter is to remove blue light that causes sleeping problems and such.

But if I still see blue light and max brightness (also a problem) on my lock screen then it's absolutely useless because it still causes disturbance.

Am I wrong? (I might be.. this is just what I've been told.)

[Breezy2596]

I know this is an old comment on an old post BUT I recently got the Samsung Galaxy A51 at the beginning of the year and Google'd why the blue light filter doesn't work on the Lock Screen and this thread seemed to help me answer that...

I think its kinda stupid that it doesn't use blue light on the lock screen because I use Blue light specifically because the "Natural" color of the phone hurts my eyes even on the low Bright setting.. so when I grab my phone to unlock it, it just pisses me off looking at it lmao. They should use the "ultrasonic finger print sensor" for every phone, not just certain ones... dumb IMO.

Atleast this thread helped me figure out my problem lol I wasn't sure if I had to change something in the settings..

[Tapiohakola123]

Please fix this issue. It worked fine on my last phone on the A40 now I have the A51 and it makes it very annoying to not have the bluelightfilter on all the time. Especially when waking up in the night and looking at the time on my phone to have my eyes burn. Please fix

[AnujSingh24]

please fix this problem as we all want our lock screen to have blue light filter...it give a lot of stress on eyes when you suddenly turn on your phone at night...