Just wanted to ask if anyone else owning this model has been having issues with that?
It seems that my phone has problems automatically choosing operator and national roaming, thus mobile data disconnects often and cannot be called, the icon shows signal strenght is fine, but that looks like false information only, because it is disconnected from my operator actually. In Nokia Care Megathread on reddit few other users also mentioned their TA-1012 has this issue. Reboot solved it until it happens again.
I have a TA-1012 and it always sticks to my network fine in the UK and when i was in Portugal and Spain the other month it also logged on to the correct networks with no issues with either calls or data.