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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ROM Hack Question Update game

Thread starter Raven_501
Start date Feb 3, 2019
Views 1,344
Replies 4

Raven_501

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Newcomer

Level 1

Feb 3, 2019

So, I was stupid and got my old switch banned and now I wanna update Xenoblade 2. How would I go about doing that?

arianadark

Well-Known Member

Member

Level 9

Feb 3, 2019

if your switch is hacked all you do is find the update file and install it

Reactions: Lacius

Raven_501

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Level 1

Feb 3, 2019

arianadark said:
if your switch is hacked all you do is find the update file and install it

And how would I go about doing that? Do you have a link to some sort of tutorial?

Lacius

Well-Known Member

Member

Level 26

Feb 3, 2019

You need to find the NSP file for the update you want to install. There are some dark places on the internet where you can find it. You might need an umbrella.

Reactions: JeepX87, arianadark and Coolsonickirby

AeoxEternal

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Newcomer

Level 2

Feb 4, 2019

There is possibly a reddit dedicated to these files. And also a site with forums full of everything. It rhymes with BarkLumbra. Except it’s helpful to replace the ‘b’ with a ‘d’ and take out the L. But I wouldn’t know. I just made all that up