Hi there.
Yes the mobile data works with a APN.
I cannot recieve or send MMS.
I’ve read on, after the last reply from yvmuell. And I can confirm from Android forums, that it’s and Android 15 issue, the MCC and MNC fields have been removed with that version.
I’ve reported it as a bug to the Android team. And I’ll ask for a new guide from the network provider, taking that in consideration. Maybe a new sim card can fix it…