● The Maps application downloads new mapinformation when you scroll to new areas on themap, which increases the demand on battery power.You can prevent the automatic download of newmaps.● If the signal strength of the cellular network variesmuch in your area, your device must scan for theavailable network repeatedly. This increases thedemand on battery power.If the network mode is set to dual mode in thenetwork settings, the device searches for the 3Gnetwork. You can set the device to use only the GSMnetwork. To use only the GSM network, selectMenu > Settings and Connectivity > Network >Network mode > GSM.● The backlight of the display increases the demandon battery power. In the display settings, you canchange the length of the time-out period afterwhich the backlight is switched off. Select Menu >Settings and Phone > Display > Light time-out. To adjust the light sensor that observes lightingconditions and adjusts the display brightness, in thedisplay settings, select Light sensor.● Leaving applications running in the backgroundincreases the demand on battery power. To closethe applications you are not using, if they are notresponding, select Options > Show open apps.,and go to the application using the menu key. Pressand hold the menu key to open the application, andselect Options > Exit.Free memoryTo view how much space is available for different datatypes, select Menu > Applications > Office > Filemgr..Many features of the device use memory to store data.The device notifies you if the memory in differentmemory locations is low.To free memory, transfer data to a compatible memorycard (if available) or to a compatible computer.To remove data you no longer need, use File manageror open the respective application. You can remove thefollowing:● Messages in the folders in Messaging and retrievede-mail messages in the mailbox● Saved web pages● Contact information● Calendar notes● Applications shown in Application manager that youdo not need● Installation files (.sis or .sisx) of applications youhave installed. Transfer the installation files to acompatible computer. 15 Find help
