Important: In the offline profile you cannot make or receive any calls, or use otherfeatures that require cellular network coverage. You may be able to call the officialemergency number programmed into your device.To make calls, you must first changeto another profile.When the offline profile is activated, you can still connect to a WLAN to, for example,read your mail or browse the internet. You can also use Bluetooth.Remember to comply with any applicable safety requirements.Prolong battery lifeIf it seems you're always looking for a charger, there are steps you can take to reducethe power consumption of your phone.• Always charge the battery fully.• When power saving mode is activated, phone settings, such as Network mode andthe screen saver, are optimised.Activate power saving modePress the power key , and select Activate power saving. To deactivate powersaving mode, press the power key , and select Deactivate power saving.Close the applications you are not usingPress and hold the menu key, swipe until the desired application is displayed, and select.Sounds, themes, and effects• Mute unnecessary tones, such as key tones.• Use wired headphones, rather than the loudspeaker.• Change the length of the time-out period after which the phone display switchesoff.Set the length of the time-out periodSelect > Settings and Phone > Display > Light time-out.Activate a dark theme and wallpaperSelect > Settings and Themes > General.To change the wallpaper, on the home screen, select > Change wallpaper.Basic use 29
