Hello guys, this is my first post here! I just got a MIG Switch card out of curiosity and I was tinkering with it. For those who don't know, it's used by placing XCI dumps as well as other game specific bin files in the sd card of the MIG Switch, and are obtained from the original cartridge by using an app like nxdumptool. Two of these bin files are mandatory to get the game to boot: Initial Data.bin and Certificate.bin. They stay the same for every cartridge of a specific game. Now, if you want to use an XCI dump from a shady website it's impossible to get it to work without those files. By using the Certificate.bin from another game it has no problem, but this does not count for the Initial Data.bin. So I looked for a way to obtain this Initial Data from an XCI file and read a bit of the XCI file documentation from switchbrew dot org. Here's what I understood so far: The Switch checks if the cartridge is valid by doing a challenge–response authentication on the Initial Data. The Package ID is contained both on the XCI and the Initial Data, on positions 0x110 and 0x0 respectively. The Initial Data hash is on the XCI at position 0x160. It is calculated by doing a SHA-256 hash on the full Initial Data content. So I was wondering, is there a way to to construct a functional Initial Data file starting from an XCI dump? I also tried a reverse approach by editing the Package ID in the Initial Data from another game, generating the Initial Data hash and putting it in the XCI file but is not enough to get the Switch believe it's a real game. Sorry if this may seem stupid but let me know what you think.

mig switch not working/updating??

stickybit · 2024-03-28T19:59:51+00:00

just got my mig switch and followed instructions to the T to update it and all im getting is a red light and then a message saying cart not recognised, all im trying to do is update it to the latest firmware, it says it should flash blue when...

Story of Seasons: Friends of Mineral Town ROM PATCH crashing the game.

Deleted member 646107

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May 26, 2023

I recently made a rom patch that renames the "Doctor" to "Dr.Trent" and some minor script changes (specifically the same sx couple "birth" event which I have rewritten to resemble the "birth" event with Inari from SoS: Trio of Towns). However, I can't seem to get it to work as it crashes the game upon start-up. Other rom patches work perfectly though, like the Bed Recolor and the Brunette Brandon Recolor made by anshela from nexusmods. It was originally for the PC version of the game, but I was able to make it work for the Switch.

If it helps, these are the steps I did to make the rename rom patch:

1. I used nxdumptool to extract the romfs folder from my cartridge dump of SoS:FoMT.

2. From here, I located the files which will be edited: /resource/message/ichigo_message_all_US.lzs

3. Transferred /resource/message/ichigo_message_all_US.lzs to my pc and used a tool called " SOS-FoMT-LZS" made by JokerDKha from github to unpack the .lzs file. Doing so gives me access to multiple .bin files which contains the words/scripts that I will be editing.

4. I used HxD hex editor to edit the necessary .bin files.

5. After successfully editing the files, I used the same tool from (3) to repack the .lzs file.

6. I then placed the edited files in atmosphere/contents/0100ED400EEC2000/romfs/resource/message/.

I'll attach the edited/unedited .lzs file if anyone's interested in testing them. For some reason, both files crash the game. I'm not sure if that particular file is just not moddable, or if it's conflicting with the other working rom patches. I can also provide the crash report if anyone wants it. Hopefully someone is able to offer their help. Thanks a bunch!

PS: I think it's also worth noting that I'm not that well-versed with game file editing as I am still learning. If I missed some steps or did something completely wrong, please don't hesitate to point it out.

Misc ROM Hack Story of Seasons: Friends of Mineral Town ROM PATCH crashing the game.

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