Basics40Using the power saving featurePower saving modeSave battery power by limiting the device’s functions.On the Apps screen, tap Settings → Power saving mode → Power saving mode, and thendrag the Power saving mode switch to the right. Alternatively, open the quick setting paneland tap Power saving to activate it.Select from the following options:• Block background data: Prevent apps that are running in the background from using amobile data connection.• Restrict performance: Limit various options, such as turning off the Recent apps andBack buttons’ backlight.• Greyscale mode: Display colours on the screen as grey tones.Ultra power saving modeUse this mode to extend the device’s battery power.In ultra power saving mode the device performs the following:• Displays colours on the screen as grey tones.• Limits access to default apps and to various other apps that can be selected from a list.• Deactivates the mobile data connection when the screen turns off.• Deactivates the Wi-Fi and Bluetooth features.