If the network mode is set to dual mode in the network settings, the devicesearches for the UMTS network. To set the device to use only the GSM network,select Menu > Settings and Connectivity > Network > Network mode >GSM.● The backlight of the display increases the demand on battery power. In thedisplay settings, you can adjust the display brightness and change the time-outperiod after which the backlight is switched off. Select Menu > Settings andPhone > Display > Brightness or Light time-out.● Leaving applications running in the background increases the demand on batterypower. To close the applications you do not use, press and hold the menu key,select Options > Show open apps., and navigate to the application with themenu key. Press and hold the menu key, and select Exit.Free memoryTo view how much space is available for different data types, select Menu >Applications > Office > File mgr..Many features of the device use memory to store data. The device notifies you if thememory in different memory locations is low.To free memory, transfer data to a compatible memory card (if available) or to acompatible computer.To remove data you no longer need, use File manager or open the respectiveapplication. You can remove the following:● Messages in the folders in Messaging and retrieved e-mail messages in themailbox● Saved web pages● Contact information● Calendar notes● Applications shown in Application manager that you do not need● Installation files (.sis or .sisx) of applications you have installed. Transfer theinstallation files to a compatible computer.● Images and video clips in Gallery. Back up the files to a compatible computer.© 2009 Nokia. All rights reserved.14
