Nokia 5530 User Guide - Page 14

Prolong battery life, background while using other features, increase the demand on battery power.

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Find help ● Personal identification number (PIN) code - This code protects your SIM card against unauthorised use. The PIN code (4 to 8 digits) is usually supplied with the SIM card. After three consecutive incorrect PIN code entries, the code is blocked, and you need the PUK code to unblock it. ● 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. 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. ● Features that use a wireless LAN (WLAN), or allowing such features to run in the background while using other features, increase the demand on battery power. The WLAN on your Nokia device switches off when you are not trying to connect, not connected to an access point, or not scanning for available networks. To further reduce battery consumption, you can specify that your device does not scan, or scans less often, for available networks in the background. ● If you have selected Packet data connection > When available in the connection settings, and there is no packet data coverage (GPRS), the device 14 © 2009 Nokia. All rights reserved.

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●
Personal identification number (PIN) code — This code protects your SIM card
against unauthorised use. The PIN code (4 to 8 digits) is usually supplied with
the SIM card. After three consecutive incorrect PIN code entries, the code is
blocked, and you need the PUK code to unblock it.
●
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.
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.
●
Features that use a wireless LAN (WLAN), or allowing such features to run in the
background while using other features, increase the demand on battery power.
The WLAN on your Nokia device switches off when you are not trying to connect,
not connected to an access point, or not scanning for available networks. To
further reduce battery consumption, you can specify that your device does not
scan, or scans less often, for available networks in the background.
●
If you have selected
Packet data connection
>
When available
in the
connection settings, and there is no packet data coverage (GPRS), the device
Find help
© 2009 Nokia. All rights reserved.
14