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• If the signal strength of the cellular network varies much in your area, your
device must scan for the available network repeatedly. This increases the
demand on battery power.
If the network mode is set to dual mode in the network settings, the device
searches for the 3G network. To only use the GSM network, select
>
Settings and Phone > Network > Network mode > GSM.
• The backlight of the display increases the demand on battery power. In the
display settings, you can change the time-out after which the backlight is
switched off, and adjust the brightness of the display.
• Leaving applications running in the background increases the demand on
battery power. To close the applications that you are not using, press and hold
, scroll to an application in the list, and press C.
• To activate or deactivate power save mode, press the power key, and select
Activate power saving or Deactivate power saving. You may not be able to
modify the settings of certain applications when power save mode is activated.
Free memory
To view how much space is available for different data types, select
>
Tools > File mgr..
Many features of the device use memory to store data. The device notifies you if the
memory in different memory locations is low.
To free memory, transfer data to a compatible memory card (if available) or to a
compatible computer.
To remove data you no longer need, use File manager or open the respective
application. You can remove the following:
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