How do I forbid the phone from using ANY mobile data ?
If I use a single byte of mobile data, my plan charges me.
Turns out, the phone used data by itself some days ago.
And NO, before you ask: it did NOT turn on the mobile data function.
Yet, I was charged.
The standard network usage graph is useless to spot what app used the data, and certainly won't tell how it used data without enabling the mobile data function.
Guess all I can do is forbid the phone altogether to access mobile data
Is there a way to do that ?
A prompt, with password, would be great
Thank you all for the solutions so far
Rarely, it DOES turn on mobile data itself, but it stays that way, so I can see and revert. (Happens in some reboots, or when I unplug the SIM, while handling the SD card, etc)
The carrier said it's the phone's fault, obviously
I can't remember the last time I HAD to use mobile data. So, if the solution makes it hard to enable it, won't be a problem.
I'm gonna try and sabotage my APNs