about blue light filter

[ramyajonas0809]

in my sasmung a21s i am not able to increase the opacity of blue light filter .  i have approached many ways like reset app preference , factory reset and i have off the colour adjustment and my device is up to date updated.

[Ehsank]

just click on font where written "blue light filter" then you can change

[Ehsank]

and if my given settings/comments will work for you then you can accept as solution by CLICKING on 3DOT at my comment

[ramyajonas0809]

sir that also i have tryed not coming

[Ehsank]

after that it was not changed
strange🤔🤔

[Ehsank]

then do one thing
go to settings >apps>click on 3DOT at right top corner >click on show system app >search for "blue light filter " click on it >storage> clear data
then again try to adjust

[Sidhabhi]

You can try try from Settings>display>turn on blue light Filter>adjust opacity

but if its not happening,then perform normal phone reset settings once

settings>general management>select reset>click on reset settings

[ramyajonas0809]

as i had reseted than also not working and in setting in display its not coming

[Sidhabhi]

Please perform normal phone reset settings once(no factory reset)

Also, change your device current theme to default theme and try again

[Anikroyale]

Well if it is not showing up in display settings, it is not available for your device because it has an LCD display and not an amoled one.