Cold Steel IV debug room access

[Kryomorphic]

Hey there.

I'm trying to access the debug room a0000 in cold steel IV and keep running into a corrupted file message when I try to load the file. What I have done is the same method that I used in cold steel III, which is to replace the map id of my save file to a0000 using HxD. Does CSIV require a different approach? Any help would be appreciated.

Thank you!

[DrummerIX]

Most likely you cannot edit saves without also updating the checksum or protection on it.

[Kryomorphic]

Ah I see. I found some mentions of checksum after googling it. I will give those a try. Thanks for pointing me onto the right path.