FYI I tryied to create a new user using this patch it wouldn't work. said the limit for number of accounts associated with this Playstation have been reached please use an existing account.
I was able to get around this by rebooting and running the rebug toolbox and patching my IDPS in memory with another region mask. I tried to create an account and it worked. then wouldn't log in it kept saying error has occured you have been signed out of the PSN. I then did a reboot ran the unban and signed in on my new account just fine. Hope this helps any with issues.