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Device guides for

Apple iPhone 6s Plus

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My mobile phone uses a large amount of mobile data

If your mobile phone uses a large amount of mobile data, there may be several causes of the problem.

If automatic mobile data usage is turned on, your mobile phone will use mobile data when the connection to the Wi-Fi network is poor.

Solution: Turn Wi-Fi Assist on or off

If notifications are turned on, your mobile phone will use mobile data when applications send push notifications and is not connected to a Wi-Fi-network.

Solution: Use notifications

If background refresh of apps is turned on, closed apps will still be able to use mobile data.

Solution: Turn off the function "Background App Refresh". You'll find the function in "General" in your mobile phone's settings.