Nokia E72

Page 13
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• If you have set 
Packet data connection
 to 
When
available
 in connection settings, and there is no packet
data coverage (GPRS), the device periodically tries to
establish a packet data connection. To prolong the
operating time of your device, select 
Menu
 > 
Ctrl.
panel
 > 
Settings
 and 
Connection
 > 
Packet data
 >
Packet data connection
 > 
When needed
.
• The Maps application downloads new map information
when you scroll to new areas on the map, which
increases the demand on battery power. You can
prevent the automatic download of new maps.
• 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. You
can set the device to use only the GSM network. To use
only the GSM network, select 
Menu
 > 
Ctrl. panel
 >
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 length of the time-out period after which the
backlight is switched off. Select 
Menu
 > 
Ctrl. panel
 >
Settings
 and 
General
 > 
Personalisation
 >
Display
 > 
Light time-out
. To adjust the light sensor
that observes lighting conditions and adjusts the
display brightness, in the display settings, select 
Light
sensor
.
• To save power, activate the power save mode. Press the
power key, and select 
Activate power saving
. To
deactivate it, press the power key, and select
Deactivate power saving
. You may not be able to
change the settings of certain applications when the
power save mode is activated.
Free memory
To view how much memory is available for different data
types, select 
Menu
 > 
Office
 > 
File mgr.
.
Many features of the device use memory to store data. The
device notifies you if available memory is low.
To free memory, transfer data to an alternative memory
(if available) or compatible computer.
To remove data you no longer need, use File manager or
the respective application. You can remove the following:
• Messages in the folders in Messaging and retrieved e-
mail messages from the mailbox
• Saved web pages
• Contact information
• Calendar notes
• Applications shown in Application manager that you do
not need
• Installation files (with .sis or .sisx file extensions) of
installed applications. Back up the installation files to a
compatible computer.
• Images and video clips in Photos.
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