See also:

Air volume, manual
To be able to manually adjust the air volume, switch off the AUTO program first. Press the left or right side of the button: decrease or increase air volume. The selected air volume is shown ...

Resetting the tone settings
1. "CD/Multimedia", "Radio" or "Settings". 2. "Tone". 3. "Reset" ...

Requirements
▷ The mobile phone is suitable. ▷ The mobile phone operating system supports the software applications of Apps. ▷ Software applications are installed on the cell phone and read ...