Please I so need help.

[Crest]

Firstly this is a copy of another message as I was told to move it here, but i dont know how to delte the old one.

I was acting foolish and decide to mess around with the walk through walls cheat in HG, stupid I know. Anyone I went down to the wifi room, and messed about so I was standing behind the wifi lady when i went in, this buggered it up, and I walked into black space, but I got into the wifi room anyway. When I got out of the wifi room, the screen was completely black, no sprite or anything, a friend says this might be that I've corrupted my map data.

I can still access all my pokemon through pokewalker, and stuff, and I can start a new game and it plays fine, but on my continue game option it doesnt work it just goes to a black screen.

So could somoene please make an action replay code for UK heart gold, that puts my map location somewhere like New bark town or cherrygrove city pokemon centre.

please i really need you.