Nokia C6-00 Nokia C6-00 User Guide in US English - Page 9
International Mobile Equipment Identity - mobiles
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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. Additional charges may apply, and all the personal data in your device may be deleted. 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 network service provider 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 network service provider whose USIM card is in your device. International Mobile Equipment Identity (IMEI) number - This number (15 or 17 digits) is used to identify valid devices on the GSM network. Devices that are, for example, stolen, can be blocked from accessing the network. The IMEI number for your device can be found under the battery. Remote lock You can lock your device remotely using a predefined text message. You can also lock the memory card remotely. Enable remote locking 1 Select Menu > Settings and Phone > Phone mgmt. > Security settings > Phone and SIM card > Remote phone locking > Enabled. 2 Enter the text message content (5-20 characters), verify it, and enter the lock code. Lock your device remotely Write the predefined text message, and send it to your device. To unlock your device, you need the lock code. 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 technology, 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 wireless LAN (WLAN), or allowing such features to run in the background while using other features, increase the demand on battery power. WLAN on your Nokia device deactivates 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 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 scroll to new areas on the map, which increases the demand on battery © 2010 Nokia. All rights reserved. 9