How to download updates Automatically in Samsung Galaxy A7-2016(SM-A710FD)?

Navigate to Apps → Settings → About device → Software update → Download update automatically

a). Tap on Apps icon from the Home screen.

b). Tap on Settings icon.

c). Drag the Screen upwards to access more settings.

d). Select and tap on About device settings.

e). Tap on Software update.

f). Tap on the Switch to download the update automatically as shown below.