Contributor
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iOS 9.0.1 data usage
--I have iOS 9.0.1 installed on my iPhone 6.
--Rarely ever use LTE/4G service, as home and office have wifi and we have a public wifi network that I use in town.
--I've had Wifi Assist turned off for over a week.
--My usage hasn't changed at all. If anything, I use my phone less lately than I used to.
What the heck is going on here? My phone and my husband's phone (6+ running 9.0.1) are both doing something at 3am every day when we're both asleep, have both phones plugged in, and have strong wifi, but where his is sending out about 120K, mine is sending out about 30MB. This doesn't make any sense to me. I know where my major data usage is, but this doesn't add up.
**I should add that I am aware that AT&T does three-hour data intervals.
sandblaster
ACE - Expert
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64.6K Messages
8 years ago
Since you know about the three hour interval, you also should know whatever you are seeing reported at 3am did not happen at 3am. The data being reported most likely occurred sometime between midnight and 3am but could have occurred anytime up to the previous 72 hours or so. The 120K could easily be attributied to visual voice mail which only works over cellular data whether you are on wifi or not and I believe visual voice mail periodically checks for messages which uses some data. Also you may not be on wifi when you think you were. There has been a long standing issue with iphones turning wifi off when in sleep mode, I do not know if that was ever fixed or not.
Suggest you reset your cellular data statistics one evening when you plug them in so you can look at your iphones in the morning and see what apps are using cellular data.
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