System UI tuner Not Enabling

[Android Central Question]

I have tried pressing at the settings gear for 6 - 10 seconds, but system ui tuner isn't enabling please help me I've also set my animations at 1×
But it's not working

 

[hallux]

It would be helpful if we know which device you have, not all devices support that feature (is it even still a thing on newer versions of Android?).

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[mustang7757]

I agree which device and Android version?
Newer phones dont have it anymore