I ended up going for the full flash, and still have problems...

In particular there are issues with "settings".

I can't connect to lan, and if I go into Settings->Internet connections->Search interval & save .. I get:

Internal error. Application "settings" closed

Also all settings are listed under "extras".

I can only guess that one of the applications I was previously using, and that was restored is causing this issue. I've already repeated the full restore (inc. eMMC) without "settings" included. None of the apps were from extras-dev, and all were in use before update.


Now going to repeat again and install applications in smaller "sets"

Sigh, I thought this would be relatively easy....