I have upgraded both my XA2 and the 10iii to SFOS 4.5:
Same settings used on my XA2 Plus work fine. Xperia 10 III handset was confirmed to have working telephony/mobile-data before device flashing. Xperia 10 III running 4.5 can make phone calls, shows “3.5G” and shows 40% signal on the sim icon on the desktop, and shows “TalkMobile” as enabled in the settings. It also shows as “Enabled” rather than “Connected”, and there is no double triangle icon next to the “3.5G” on the homescreen.
Using the settings that I successfully use on my XA2:
Protocol (IP or IPv6 or Dual): Dual
Authentication: PAP or Chap
Using the settings provided to Flypig by TalkMobile:
Protocol (IP or IPv6 or Dual): IP (this is what you mean by “IPV4” right?)
Neither work. New ofono logs for both sets of settings supplied.
Only difference that I can see is that homescreen now shows “3.5G” rather than “3G”.