Xperia 10 III support

[PeegeeTips]

No idea if it’s related, but I have twice received a text from the network operator promising a future text containing network setting. Neither of those texts has ever arrived:

Lost mobile data - Can make calls but only get data on wifi - "3G" displayed - 4G calling = "Not Registered" and flashing

Thank you. Lots to cover here, i’ll update you on what I have tried: “To be sure try rebooting after changing to ‘Dual’. I forgot to mention that.” Fear not, i was doing that. “You said it worked on your XA2. So try the settings you used there.” The settings were quite different on my XA2 Plus, and i did faithfully re-enter them into the 10 iii (see attached). Still didn’t work after a device restart. One thing that is different between the two phones is the “4G Calling feature”, which I …