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this key to lock screen; if you press and hold this
key, an option interface would pop out. Here, you
can select to restart, take screenshots or power off.
Volume Key
Volume keys are on the right side of the phone.
You can press them to adjust ringer, earpiece
or media volume.
You are also presented three
options of Silence, Vibrate and Normal.
Just remember to turn it back to Normal
when your meeting, nap or movie is done.
Menu Key
Press this key to access of recent items.
Home Key
Press it to open home screen. If you’re viewing the
left or right extended Home screen, touch it can enter