Niel, if he updates via the GUI the error message is as above already said: oops, something happened!

Is it a Jolla1?
Did you reset it when received?
some more info is always good.

I would say the same as nieldk: backup whatever you have pit on device, reset and update/update/update... and configure.


--
if you know how to deal with shell and root rights you might try the manual update way and get to know a bit more (probably).

I ran into a situation where I had mixex libraries from old and new SFOS version and helpdesk's only help was: RESET! Which I definitely denied and even asking them for zpecifoc packages and locations was not answered. So it took me a few days to recover.
Long story short: reset.