Unable to use mobile data on Sony Xperia 10 III 4.4.0.64

[PeegeeTips]

Same problem.

10 ii is currently a SFOS toy, and I have gone back to my XA2 Plus as my ‘phone’:

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

REPRODUCIBILITY: 100% now. Recurs after a restart. OS VERSION: 4.4.0.68 (Android 11_4.19_v9a_lena) HARDWARE: 10 iii UI LANGUAGE: English REGRESSION: Yes - Mobile data tested before and after device flashing. Seems to have happened in last few days - difficult to be precise as I WFH with wifi. Mobile data on the same sim still works fine on my old XA2 Plus running 4.4.0.64. DESCRIPTION: Using exactly the same System>Mobile network settings as in my XA2 Plus. n.b. except the “4G calling (be…