where is the System UI Tuner?

[Android Central Question]

my device is: note 5 SM-N920C marshmalow 6.0.1 (but upgrade 7.0)-non rooted
I can't find System UI Tuner settings. where is it.?
some guide said that tab and hold gear icon. but it does not spin. doesnt work

 

[Javier P]

Welcome to the forums. As far as I know Samsung didn't include the UI Tuner on most devices. Sorry.