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

duckstation is an excellent Playstation 1 emulator by Stenzek. It has a very good compabiility and it is quite performant. It also supports all kinds of enhancements such as high resolution rendering and PGXP which can lessen the "wobble" and...

Gaming I need a good game to play..

Thread starter MightyMoe
Start date Jul 29, 2018
Views 4,454
Replies 42
Likes 1

chikoo_69

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Level 6

Aug 7, 2018

Hollow Knight is AWESOME!! One of the best metroidvania i have ever played

morrison22

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Level 9

Aug 7, 2018

100% without a doubt --- Play Ys VIII: Lacrimosa of Dana. It is a spectacular action adventure game with light RPG elements. The story is interesting, the characters are fun, the environment is lush and the pace is amazing. If you loved BOTW, (or even if you liked the concept of the TV Show 'Lost' as this game borrows from it in many ways), you will enjoy this game. I am 50 hours in and loving it!

Last edited by morrison22, Aug 7, 2018

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electronrancher

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Level 3

Aug 8, 2018

morrison22 said:
100% without a doubt --- Play Ys VIII: Lacrimosa of Dana. It is a spectacular action adventure game with light RPG elements. The story is interesting, the characters are fun, the environment is lush and the pace is amazing. If you loved BOTW, (or even if you liked the concept of the TV Show 'Lost' as this game borrows from it in many ways), you will enjoy this game. I am 50 hours in and loving it!

That sounds really interesting, thanks for the tip

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