Xperia 10 iii can't enable mobile data on talkmobile use the same settings used on my XA2 Plus

[PeegeeTips]

Update - tried the Sim card in Sim2 slot and i’m back to where I started originally in the first bug report:

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 …

I can make calls, but have no mobile data and the Mobile Settings report “Limited connectivity”.

Since I got this far, i tried your suggestion:

@senders

devel-su journalctl -f

tried the above, got lots of scrolling text, but nothing among it looked like:
“DUAL no IPv4 address set”

Also did devel-su ifconfig and the rmet_data1 link encap stuff lists an addr for both inet6 and inet.

Thank you.