To change the wallpaper, on the home screen, select > Change wallpaper.Lower the brightness of the screenSelect > Settings and Phone > Display > Brightness.Switch the Big clock screen saver offSelect > Settings and Themes > Screen saver > None.Network use• If you are listening to music or otherwise using your phone, but do not want tomake or receive calls, switch to the offline profile.• Set your phone to check for new mail less frequently.• Use a Wi-Fi connection to connect to the internet, rather than a mobile data (GPRSor 3G) connection.• If your phone is set to use both GSM and 3G networks (dual mode), the phoneuses more power when searching for the 3G network.Set your phone to use only the GSM networkSwipe down from the notification area, then select the mobile network and Networkmode > GSM.Switch Bluetooth off when not neededSwipe down from the notification area, then select .Stop your phone scanning for available Wi-Fi networksSwipe down from the notification area, then select .Open a mobile data (3G or GPRS) connection only when neededTo close the mobile data connection, swipe down from the notification area, thenselect .Personalisation and Nokia StoreProfilesAbout profilesSelect > Settings > Profiles.Waiting for a call but can't let your phone ring? Your phone has various settings groupscalled profiles, which you can personalise for different events and environments. Youcan also create your own profiles.30 Personalisation and Nokia Store