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.

Mario Strikers: Battle League !!!CRASH FIX!!!

Christo-Fuhrer

New Member

Newbie

Jun 11, 2022

Hello all,

My first post here, but it's because I have found a solution to a lot of Mario Strikers: Battle League crashes.
If you have a modded Switch, I highly recommend checking if you have SaltyNX installed, this is the cause for most crashes.

How to check if you have SaltyNX:
Go to SD Card root directory, and look for a folder called SaltySD. That's it! If you see it there, you have SaltyNX!

The fix:
Go to the SaltySD folder, and open the file called 'exceptions.txt'
At the very bottom, make a space and then on this new line paste in as follows:
;Mario Strikers: Battle League ;1.0.0 crash on boot 010019401051C000

Save the file, and restart your Switch.
Done! This should fix all of your crashes!

Courtesy to Switchway (awesome community I'm part of) who reminded me I had SaltyNX which prompted me to discover that file lol.

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