Okay, here's what DarkAura is saying in a nutshell.
Since you asked for a code, DarkAura told you to ask a code hacker to make it, but that doesn't imply anything about the code working. Also, it fits into the topic because technically, that "is" a solution to one of your problems but not a solution to the actual problem.
By definition, you needed a code to walk through walls. He provided said solution.
That said, no, there are no codes for AC:WW that work for the R4. So, you're now up the creek without a paddle.
-End Topic-