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 Offering Four Nintendo Switch Consoles for testing purposes.

Thread starter MeltedNifl
Start date Jun 20, 2018
Views 5,829
Replies 42
Likes 8

Kalisto

Active Member

Newcomer

Level 3

Jun 21, 2018

PM'd you @MeltedNifl

Blue

Well-Known Member

Member

Level 7

Jun 22, 2018

SonyUSA said:
If you had the dumped game mounted when you downloaded the update, it definitely sent the bad cert to nintendo and flagged you. What people should try is mount the cart to make the tile appear, then reboot into OFW and choose Options and try to start the game update that way, that way since no cart is mounted it -shouldn't- try to send any license data to Nintendo since the cart is "ejected", but this is just speculation.

This would be quite interesting to know if you get banned or not.

SirNapkin1334

Renound Aritst

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Level 7

Jun 22, 2018

To move the thread, click on the \/ button in the bottom left of the first post. Then click on report, and in the text box that appears say you want the thread moved. Tell them where to move it to, and also specify that you’re the owner of the thread. Press Report Post, and you’re good! Don’t worry, you won’t get in trouble or anything, even though it’s called “report.”