Turn touch sounds on/off
1. Go to Settings > Sound & vibration > Advanced.
2. Do any of the following:
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To hear a tone when you dial a number, turn on Dial pad tones.
•
To hear a click when you lock or unlock the screen, turn on Screen locking sound.
•
To hear a click when you touch something on the screen, turn on Touch sounds.
•
To feel a vibration when you type on the keyboard, turn on Touch vibration.
If you don't want any of these sounds, just turn them off .
Settings : Sound & vibration 209