Change The Volume - Nokia lumia 830 User Manual

You don't need to charge the battery for a specific length of time, and you can use the phone while
it's charging.
If the battery is completely discharged, it may take several minutes before the charging indicator is
displayed.
Tip: You can use USB charging when a wall outlet is not available. Data can be transferred while
charging the device. The efficiency of USB charging power varies significantly, and it may take
a long time for charging to start and the device to start functioning.
Make sure your computer is turned on.
First connect the USB cable to the computer, then to your phone. When the battery is full, first
disconnect the USB cable from your phone, then from the computer.
The battery can be charged and discharged hundreds of times, but it will eventually wear out. When
the talk and standby times are noticeably shorter than normal, replace the battery.

Change the volume

If you have trouble hearing your phone ringing in noisy environments, or calls are too loud, you can
change the volume to your liking.
Use the volume keys on the side of your phone. The maximum volume level is 10.
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