I've have so far tried resetting the phone, resetting the WiFi and turning the WiFi off altogether but no luck there either. The only thing I did manage to do was the initial transfer apps /photos / etc from my old Sony Xperia to the phone which so far I've not been able to access or see.
Any help would be greatly appreciated.
Best answer by Jmoon
Or is it that you are literally stuck on the update screen? If so, you can power off, and then do a factory reset by holding power and volume up buttons until phone reboots. You'll then get an option to wipe/ factory reset.
I'm now in the habit of setting up new phones 'fresh'. Maybe try that and see if the problem persists without the transfer of old back-up.