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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.

I enabled 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.

  • I assume you're using LTE? If so, try "locking" the device to UMTS (3G) and below. Without usage of mobile data, there's no advantage for LTE anyway. – Izzy Dec 17 '17 at 13:57
  • @Izzy Thanks for suggestion but where I can find this option? – Yaros Dec 17 '17 at 15:24
  • Check in Settings. It's in a slightly different place with different ROMs, but there's a setting to chose the preferred network type. – Izzy Dec 17 '17 at 16:20
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    @Izzy I found this menu and set GSM (2G) only. I will check whether it helps. Thank you anyway. – Yaros Dec 18 '17 at 15:34
  • Cool. Let us know then! – Izzy Dec 18 '17 at 15:35
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Install app like Glasswire and you can monitor your outgoing traffic. Or you can use firewall apps and try to disable the data on every app.

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  • I definitely need some firewall (that works without root because I don't have one). I will search for it. Sorry, can't upvote this ansver due low reputation – Yaros Dec 21 '17 at 18:10
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    @Yaros be welcome to take a look at my list of Android firewall apps. Has several candidates working without root. NetGuard is often recommended, being very flexible and covering a lot. – Izzy Dec 21 '17 at 18:15
  • I installed "NoRoot Firewall" app and configured pre-filter on global rules tab. (filter for all ports, all ips, mobile network connection only) It works, I have no mobile traffic anymore. – Yaros Dec 29 '17 at 15:21

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