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Apple iPad Air 2
iOS 11.0
1 Find "Background App Refresh"
Press Settings.
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Press General.
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Press Background App Refresh.
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2 Turn background refresh of apps on or off
Press the indicator next to "Background App Refresh" to turn the function on or off.
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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.
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4 Return to the home screen
Press the Home key to return to the home screen.
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