Settings : Accessibility
2.
If you've assigned two or more accessibility features to the Volume buttons, you can add more
shortcuts with the gesture. Press & hold both Volume buttons, then tap Edit shortcuts to select from a
list of all accessibility features.
Use the shortcut
Press & hold the Volume Up and Down buttons at the same time for three seconds.
If you assigned multiple accessibility features, you'll see a list. Tap a feature to it turn on/off.
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