Nokia 002Q944 5230 User Guide - Page 15

Prolong battery life, If you have selected

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● PIN2 code - This code (4 to 8 digits) is supplied with some SIM cards, and is required to access some functions in your device. ● Lock code (also known as security code) - The lock code helps you to protect your device against unauthorised use. The preset code is 12345. You can create and change the code, and set the device to request the code. Keep the new code secret and in a safe place separate from your device. If you forget the code and your device is locked, your device will require service and additional charges may apply. For more information, contact a Nokia Care point or your device dealer. ● Personal Unblocking Key (PUK) code and PUK2 code - These codes (8 digits) are required to change a blocked PIN code or PIN2 code, respectively. If the codes are not supplied with the SIM card, contact the operator whose SIM card is in your device. ● UPUK code - This code (8 digits) is required to change a blocked UPIN code. If the code is not supplied with the USIM card, contact the operator whose USIM card is in your device. 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: ● Features that use Bluetooth coonectivity, or allowing such features to run in the background while using other features, increase the demand on battery power. Deactivate Bluetooth connectivity when you do not need it. ● If you have selected Packet data connection > When available in the 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 Packet data connection > When needed. ● The Maps application downloads new map information when you move 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. © 2009 Nokia. All rights reserved. 13

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●
PIN2 code
— This code (4 to 8 digits) is supplied with some SIM cards, and is
required to access some functions in your device.
●
Lock code (also known as security code) — The lock code helps you to protect
your device against unauthorised use. The preset code is 12345. You can create
and change the code, and set the device to request the code. Keep the new code
secret and in a safe place separate from your device. If you forget the code and
your device is locked, your device will require service and additional charges may
apply. For more information, contact a Nokia Care point or your device dealer.
●
Personal Unblocking Key (PUK) code and PUK2 code — These codes (8 digits) are
required to change a blocked PIN code or PIN2 code, respectively. If the codes
are not supplied with the SIM card, contact the operator whose SIM card is in
your device.
●
UPUK code — This code (8 digits) is required to change a blocked UPIN code. If
the code is not supplied with the USIM card, contact the operator whose USIM
card is in your device.
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:
●
Features that use Bluetooth coonectivity, or allowing such features to run in the
background while using other features, increase the demand on battery power.
Deactivate Bluetooth connectivity when you do not need it.
●
If you have selected
Packet data connection
>
When available
in the
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
Packet data connection
>
When needed
.
●
The Maps application downloads new map information when you move 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.
© 2009 Nokia. All rights reserved.
13