Galaxy ONE UI 4

[SergioHaroon]

Where's my extra dimmer at 

[Mafrek]

What phone ur using older phones dont support it

[SergioHaroon]

It's galaxy note 10 plus

[Mafrek]

Not sure cuz i have s10+ and it dont have it either but i had it on my s20 and fold 3

[SergioHaroon]

My friends phone have this feature

[EngrJunaid]

Note10+ doesn't support extra dimmer

[SergioHaroon]

Note ten plus

[SergioHaroon]

It does in my friends phone

[EngrJunaid]

Then share his software build number.