Originally Posted by mistdragon
Maybe you never 'Activate' it?
Chances is, the codes might not be compatible. Try to find new ones?
Same thing that happens with me, probably the wrong codes (finding the right ones are a pain...) anyway I NEVER got anything to work on FR so I just kinda went with Emerald.
The magic door trick is awesome for catching Mew and Deoxys, it'll actually let you trde it onto other games