@Schturmann: 2.0.2.48 - both 1 and C. I think it was not your patch but coderus'. I thought that it was a problem with both your and coderus' patch installed.

But after removing your patch the behaviour is the same:

Original state (after reinstall jolla-settings-sailfishos): enable coderus patch. Everything is fine - though I do not know if the patch works on update (what I believe it does). Disable the patch: fails - but I cannot reach upgrade settings anymore.

Sorry it is not coderus' patch it is Sfiet_Konstantin's.