Q: Why is my iphone 4 still sending and receiving data when not in use?
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Mar 27, 2014 5:40 AMby pacorob,# Settings > Refresh apps on background. I would suggest to completely turn that off
# Settings > Privacy > Location tracking > Only Maps, Google Maps are allowed to use location tracking in my case, you could also turn that off completely or be very selective which apps can use your GPS.
# Settings > E-mail, calendar .. >deselect 'Push' and set it to either Fetch e.g. once an hour for all separate e-mail accounts you have. In your case you could set it to Manual so you won't use any data as long as you won't open your E-mail app and manually download e-mails.
It could also be that there is still an app running in the background as i had. See also .
In that case you need to dive into the Settings > General > Info > Diagnostics and Use >
Diagnostics and Use >logs per app to determine which app isn't closed although you turned off your phone (or even in my case reset to factory settings without backup). It's unfortunately pretty hard to find the app that is causing this. Therefore i wish Apple would come up with a better solution for this to see which processes/app(s) should be killed (now the best solution is removing the app completely).
