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.

Gaming Post your Switch Friend Codes!

Thread starter EpicLPer
Start date Mar 3, 2017
Views 52,987
Replies 342
Likes 9

TakiraWolf

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May 27, 2020

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069152388703

Lookin to help on Minecraft adungeons

MeitanteiReborn

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#322

SW-6081-1347-7526

veenx0704

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#323

SW-5645-5740-0513

Costapk

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Switch FC:7298-7534-0796
Please add me!

JiggleWinks56

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SW-6387-7104-0519

TheSlammer

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Got only a few pals, here's mine:SW-6828-6315-5690

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#327

SW-7266-2385-1610

Algol

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Add me to play animal crossing and pokemon (:

SW 0848 4559 6188

NANASHI89

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SW-7266-2385-1610

Animal Crossing

fst312

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Sw-7970-5457-0501

Looking to play puzzle games and stuff. snes online or nes online. The discord I was on seems to be deleted.

RozeMoon

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#331

5411-0282-8633

Jayro

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Mar 3, 2021

#332

I have a new friend code as opposed to the one posted on page 6. So use this one instead. Everyone can add me.

TheBoingo

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SW-2221-6362-7538

Lunar

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I'm only online when playing on sysNAND but feel free to add me
SW 8314 0603 0722

biggzsizzle

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Apr 2, 2021

#335

Never too late to bump a dead post, eh??

SW-5743-8413-8217

BiggusDickus

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I mostly play Monster Hunter
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SW-6519-0554-3698
Not the best island but I play Animal Crossing!

Lumpy64

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hey all plz add me just got my switch and dont wanna be lonely

(
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