If anyone has had this error when updating WordPress automatically:
“Briefly unavailable for Scheduled maintenance. Check back in a minute”
And have been told just to simply delete a .maintanence file that gets writen in the root and can't find it this is what I did:
The .maintenance file was never written in my root. I looked everywhere and could not find it.
I ended up looking in the the wp-settings.php and found the HTML written in there which I deleted (just the HTML, I didn't delete any of the PHP) and now have access to my site again.
When I logged back in this message was displyed at the top:
“An automated WordPress update has failed to complete – please attempt the update again now.”
Just thought I would let the world know incase someone was faced with the same problem!