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...

Hacking Game card reader pin mapping?

Thread starter TheStonedModder
Start date Jan 18, 2024
Views 524
Replies 4

TheStonedModder

Well-Known Member

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Level 9

Jan 18, 2024

Hey all, I was wondering if anyone happened to know the pin map for the game card reader. I’m working on some shenanigans and it would be very helpful instead of waiting for Aliexpress and manually probing ha

Micolash

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Level 1

Jan 18, 2024

https://switchbrew.org/wiki/Gamecard

Reactions: BigOnYa and TheStonedModder

TheStonedModder

Well-Known Member

Member

Level 9

Jan 18, 2024

Micolash said:
https://switchbrew.org/wiki/Gamecard

That is helpful thank you. I must have glanced over it.

Do you happen to know the pitch of the pins of the reader? That I don’t believe is in there unless I am blind

Micolash

Member

Newcomer

Level 1

Jan 18, 2024

TheStonedModder said:
That is helpful thank you. I must have glanced over it.

Do you happen to know the pitch of the pins of the reader? That I don’t believe is in there unless I am blind

this?

TheStonedModder

Well-Known Member

Member

Level 9

Jan 18, 2024

Micolash said:
this?

View attachment 414657

Close, the pitch is the spacing between those pins

I can order one from Aliexpress and measure manually but that’s gonna take a minute to come in the mail lol