Mobile Data Usage???

[Sparky8621]

My phone uses Mobile Data EVEN though when I am connected to WI FI with Mobile Data disabled??

Everytime my phone goes to sleep or locks the screen, it seems like it uses Mobile Data in the background, but my WI FI is enabled?? Sometimes when I unlock my screen, I get a notification telling me that my Mobile Data is Disabled ... but I never did enable it because my WI FI is on 24/7

This morning, after I woke up, I got a SMS from my service provider, telling me that my Data has been used up? When before I went to bed, I left my WI FI on, my phone at my bedside with Data Disabled ... It used a whole 60MB over night??

[CameronT]

@Sparky862,

Do you have Developer options enabled in Settings?

If not, go to Settings > About Phone and tap on build number multiple times until it says you are a developer.

Look for this option "Mobile data always active". Make sure it is turned OFF.

[Sparky8621]

And if I want to turn my mobile data on?? Should I do the same thing??

[CameronT]

@Sparky862,

That option should be turned off by default. If it is off then your phone should behave in the normal way, by prioritising WiFi over Mobile Data when available, and switching to Mobile Data automatically when you are away from WiFi.