After running both commands above (I assume ofono-setup actually had the effect of changing it), the phone presented a 'choose default sim' dialog when I entered the dialler, and showed a registered network name (gifgaff) after choosing.
However, calls dialled were not attempted.
I then rebooted the handset, and the phone appeared to function normally.
After running both commands above (I assume ofono-setup actually had the effect of changing it), the phone presented a 'choose default sim' dialog when I entered the dialler, and showed a registered network name (gifgaff) after choosing.
However, calls dialled were not attempted.
I then rebooted the handset, and the phone appeared to function normally.