QMobile NOIR A2, User Manual

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(1) Press VOLUME UP or VOLUME DOWN buttons
on the right side of the phone to adjust the ringer
volume.
(2)When it’s in the lowest level already, pressing
the VOLUME DOWN once will change the phone
to Vibration Mode. While in Vibration Mode, the
vibration icon will appear on the status bar.
(3)When it’s in Vibration Mode already, pressing
the VOLUME UP once will change to Ringer
Mode.
(4) To switch the phone to Silent Mode directly
and quickly, press and hold Power button, and
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