Looks like applying those works, At least set-up can be done using mobile network.

Thanks a lot.!

Possibly /var/lib/ofono/ril is lacking the line
where "204853412657279" is actually wherever you have in /var/lib/ofono/iccidmap as being equal to your IMSI. For example:

Your IMSI is the long string of numbers printed on your SIM.

Or in the mobile network settings select your SIM as the data sim as it might not be selected.

Heik
Did you select the sim in "Use SIM-card" in mobile networks? Even if there's a correct one already, I found that you should re-select it again. Then you can activate mobile internet.

anyone knows if jolla fixed exchange so you are able to change password without deleting and account again?

yes it is fixed

what about accepting/denaying meeting request?

Google Play store downloading does not work anymore even with Jolla 1, apparently due to Google's changes that block unauthorized devices.

You can use Yalp store to get applications from Google Play store.

Sadly no