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.

duckstation for Switch

catlover007 · 2024-04-22T04:06:40+00:00

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Hacking Question Some guys not appearing on DevMenu for NSP?

Thread starter LegendAssassinF
Start date Jul 23, 2018
Views 2,152
Replies 7

LegendAssassinF

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Level 4

Jul 23, 2018

I downloaded Don't Starve and it isn't appearing in my list. Anyone else have this issue?

jakkal

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Level 14

Jul 23, 2018

Can you be a bit less vague?

subcon959

@!#?@!

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Level 20

Jul 23, 2018

Download it again. If devmenu can't detect it then something must be wrong with the file.

Reactions: slaphappygamer

slaphappygamer

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Level 18

Jul 24, 2018

Silly question, but the nsp is on the sd root, right? (sdcard:/dontstarve.nsp)

Nincompoopdo

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Level 11

Jul 24, 2018

Which guys are you referring to?

Reactions: Assasin1990

PeterGemp

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Level 3

Jul 24, 2018

LegendAssassinF said:
I downloaded Don't Starve and it isn't appearing in my list. Anyone else have this issue?

Shorten the name as far as possible and refrain from using special signs, such as the " ' " in Don't Starve.
Just rename it to dontstarveMAIN.nsp and dontstarveUPD.nsp .

Should be smooth sailing from here on out.