After I updated my iphone 5s to iOS 9.1 my system services use a lot of data for general, more than Half of my data plan is used on it. Anyone knows why this happens?
iPhone 5s, iOS 9.0.1
I think I found the culprit... I'll try to translate the menus from my italian iPhone in English, anyway for me the problem was whatsapp, with weekly conversation backup on icloud.
The problem is that even if you disable Whatsapp access to mobile data, the backup still goes on because it is seen as a system services and uses iCloud Drive. Of course you could disable iCloud Drive access to data network but here comes the issue: you can disable/enable data in two places: Settings/Cellular where you enable/disable data for all the apps, there's "iCloud Drive". Then if you go in Settings/iCloud/iCloud Drive there's a switch for "access to cellular data" which is INDEPENDENT from the one you set in the other section of the preferences. I think this is a bug and it was probably the reason why it consumed all that data.
Thanks for your help zpaolo.
Turns out iCloud was set to "Use mobile data"- I went into whatsapp chat settings, and it was performing a DAILY backup.
Now I know. Even with wifi on it was ignoring the connection and just using my mobile data.
Hope this helps everyone else
Same issue here, this morning almost 400 MB of my data plan got sucked and the phone was always hot and discharged very quickly. Reset my stats and noticed that 90% of data usage was from "General" system services. No idea what that is, I'm chatting with tech support, I hope they can find a solution...
iPhone 5s, iOS 9.0.1
why does General under system services use a large amount of data after i updated to iOS 9.1?
