Thanks for the suggestion but that should be used as an absolutely last resort.
I don't really thinnk it's acceptable that we should have to perform a factory reset after every update. I've made a hugh amount of changes and configuration settings which I'll have to do again if I go down that route.
When you say "always suggested after an update" - by whom? Not by Sony. They clearly don't think this should be necessary otherwise they'd say so.
Appreciate you responding and trying to help.
