Basics13Soft buttonsBack buttonHome buttonRecents buttonWhen you turn on the screen, the soft buttons will appear at the bottom of the screen. Thesoft buttons are set to the Recents button, Home button, and Back button by default. Refer toNavigation bar (soft buttons) for more information.BatteryCharging the batteryCharge the battery before using it for the first time or when it has been unused for extendedperiods.Use only Samsung-approved battery, charger, and cable specifically designed for yourdevice. Incompatible battery, charger, and cable can cause serious injuries or damageto your device.• Connecting the charger improperly may cause serious damage to the device. Anydamage caused by misuse is not covered by the warranty.• Use only USB Type-C cable supplied with the device. The device may be damagedif you use Micro USB cable.To save energy, unplug the charger when not in use. The charger does not have apower switch, so you must unplug the charger from the electric socket when not inuse to avoid wasting power. The charger should remain close to the electric socketand easily accessible while charging.