When you use the offline profile, you can still use WLAN, for example, to read your mail
or browse the internet. You can also use Bluetooth connectivity. Remember to comply
with any applicable safety requirements when you establish and use WLAN or Bluetooth
connections.
Prolong battery life
Many features in your device increase the demand on battery power and reduce the
battery lifetime. To save battery power, note the following:
• Always charge the battery fully.
• Activate power saving mode. Press the power key, and select Activate power
saving. The device settings, such as Network mode and the screen saver, are
optimised. To deactivate power saving mode, press the power key, and select
Deactivate power saving.
• Set your device to retrieve mail less frequently. Select Menu > Applications >
Mail > Settings, your mailbox, and Sync frequency. If you have additional
mailboxes, you may need to set the retrieval frequency separately for each mailbox.
• Mute unnecessary tones, such as key tones.
• Use wired headphones, rather than the loudspeaker.
• Deactivate the background animation effects. Select Menu > Settings and
Themes > General > Options > Theme effects > Off.
• Deactivate the Big clock screen saver. Select Menu > Settings and Themes >
Screen saver > None.
• Activate a dark theme. Select Menu > Settings and Themes > General.
• Change the length of the time-out period after which the device display switches
off. Select Menu > Settings and Phone > 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.
• If the signal strength of the cellular network varies in your area, it increases the
demand on battery power.
• If the network mode is set to use both GSM and 3G (dual mode) networks, the device
searches for the 3G network. To set your device to use only the GSM network, select
Menu > Settings
and Connectivity > Network > Network mode > GSM.
• Deactivate Bluetooth when not needed. Select Menu > Settings and
Connectivity > Bluetooth > Bluetooth > Off.
• Stop your device from scanning for available WLANs in the background. Select
Menu > Settings and Connectivity > WLAN > Options > Settings > Show
WLAN availability > Never.
• When connecting to the internet, use a WLAN connection, rather than a packet data
(GPRS or 3G) connection.
Basic use 33
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General
Weight and Dimensions
