I've been attempting to do this tutorial: http://www.aibohack.com/nds/ac_ards.htm On rock doors. I've also been using the Action Replay on R4/M3 thread (I'm using an R4 DS). But I've come up to a problem. When I try and run ACWW on my R4 with ANY action replay code on, it doesn't load up, a white screen is shown and my DS Lite freezes. Codes work fine on other games, but I can't get any working on ACWW, let alone the rock door open and close cheats. Anyone have any ideas why this is happening or any help on getting these rock doors to work on an R4?
This has been a known problem for quite some time. I'm not sure if anyone has come up with a solution yet.