Central key
From the Home screen, click the central key on your phone's keypad to access the Menu.
From the Home screen, press and hold the central key to activate the voice assistant
and ask the phone to perform an action.
When you need to enter text, pressing and holding this key also lets you dictate to the
phone what you want to write.
More generally, this key allows you to select the function/app that you are pointing to
on the screen.
When your phone is in standby, this key allows you to unlock it with one click.
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