1. Find "Background App Refresh"
Press Background App Refresh.
2. Turn background refresh of apps on or off
Press the indicator next to "Background App Refresh" to turn the function on or off.
If you turn on background refresh of apps, app content will be updated when a connection to a Wi-Fi network or mobile network is established.
3. Turn background refresh of specific apps on or off
Press the indicator next to the required app to turn the function on or off.
4. Return to the home screen
Press the Home key to return to the home screen.