When it's on, "Talkback" function provides visually impaired and blind users with spoken feedback to help interact with their smartphone.
To disable Talkback function when the screen is locked, select the icon   then tap twice quickly on it:
- enter your password, if needed,
- keep pressing "Volume+" and "Volume-" buttons at the same time until the screen displays: "Held volume keys, Talkback turned off",

* To disable this shortcut, open "Settings" app :
- tap on "Accessibility",
- tap on "Talkback",
- disable "Talkback shortcut".


Enable and resume Talkback function for visually impaired and blind users

When it's on, "Talkback" function provides visually impaired and blind users with spoken feedback to help interact with their smartphone.
To enable Talkback function, open "Settings" app :
To open an app and interact with the smartphone, select the relevant icon then tap twice on it.
To swipe home screens, use 2 fingers instead of 1.

To resume Talkback function if it is in standby mode:
- if the screen is locked, select the icon  then tap twice quickly on it:
- unlock the screen using your password, if needed,
- press "Volume+" & "Volume-" buttons at the same time until the following message is displayed : "Accessibility shortcut turned Talkback on".