1. iMore Question's Avatar
    2 days after installing IOS9 my cellular data usage went through the roof! I keep close watch on the usage counts and reset the counter every month when my cellular bill cycles. (settings>cellular>cellular usage current period)

    I have cellular data turned off for most apps but at the bottom of the apps list is "system services" which used over 2.1GB in a very short time. The sub-category that used all the data is "media services".

    How do I stop media services from eating up all of my data?
    10-07-2015 02:49 PM
  2. sting7k's Avatar
    It's probably wifi assist.

    Go to Settings -> Cellular and scroll all the way to the bottom to toggle it off.

    I honestly don't even think it works as Apple claims. I regularly have my iPhone attempt to cling to 1 bar of wifi when I get in my car to leave home or work and with iOS 9 it still tries to hold onto that weak wifi signal with wifi assist turned on.
    10-07-2015 03:01 PM
  3. Ledsteplin's Avatar
    Turn all that off in system services except "Find My iPhone".
    10-07-2015 03:03 PM

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