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.

Fusee.bin with the new Pre-release of Atmoshere 1.7.0

Mimikyu · 2024-03-30T15:42:14+00:00

Hello, little problem again... I tried to update my Switch again because of the new 18.0.0 Update of Nintendo. I'm reading a lot on the Website WiiDataBase and that's how and why i wanted to update now. My problem is that i can't access my custom...

my mario kart 8 deluxe mods are disappearing

Thread starter toto555
Start date Oct 23, 2021
Views 4,140
Replies 27

toto555

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Level 1

Oct 23, 2021

laramie said:
yeah so where exactly does it stop working then?

the mods are deleted when I put the sd card back in my sd

laramie

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Level 8

Oct 23, 2021

toto555 said:
the mods are deleted when I put the sd card back in my sd

have you tried using ftp or something to transfer it instead of taking the sd card out? Maybe computer is corrupting it?

toto555

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Newcomer

Level 1

Oct 23, 2021

laramie said:
yeah so where exactly does it stop working then?

the mods are deleted when I put the sd card back in my sd

toto555

Member

Newcomer

Level 1

Oct 23, 2021

laramie said:
have you tried using ftp or something to transfer it instead of taking the sd card out? Maybe computer is corrupting it?

yeah but i can't use nro file

laramie

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Level 8

Oct 23, 2021

toto555 said:
yeah but i can't use nro file

is the nro updated? Is it the latest? Also what's your fw?

Draxzelex

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Level 23

Oct 30, 2021

toto555 said:
the mods are deleted when I put the sd card back in my sd

How is your SD card formatted?

laramie

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Level 8

Oct 30, 2021

Draxzelex said:
How is your SD card formatted?

toto555 said:
i am sure my sd card is FAT32

Draxzelex

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Member

Level 23

Nov 7, 2021

toto555 said:
the mods are deleted when I put the sd card back in my sd

Did you check to see if the SD card is real or not?

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