I have expensive mobile data plan so I disabled mobile data in settings. But I still have a little amount of mobile data traffic every day that I paying for. (something near 100-1000 bytes, I inspected it in payment detalisation provided by operator)
I use home wifi for internet access so I need to disable only mobile data but not wifi.
restrict background data option but still have mobile traffic. (screen1)
In APN menu I can't delete/edit default APN supplied by mu operator. I created and selected fake APN as sugested in How can I disable mobile data completely? but still have mobile traffic.
How can I (but not disable wifi)?
I suspect OS Android or Google services make this traffic. (screen2)
My phone is LG X style K200DS Android 6.0.1.