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...

Hacking Switch wont boot past nintendo logo

Thread starter dizzysyn
Start date Apr 18, 2019
Views 948
Replies 3

dizzysyn

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Newcomer

Level 2

Apr 18, 2019

I just threw a nsp onto my switch and now it wont boot past the nintendo logo. Running Atmosphere on 7.1 i think

Kubas_inko

"Something funny goes here."

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Level 15

Apr 18, 2019

Congratulation, you bricked your switch.
Can it boot to OFW?

bandithedoge

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Level 6

Apr 18, 2019

Did you install it to SD or NAND? And do you at least have a NAND backup?

thesjaakspoiler

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Level 8

Apr 18, 2019

Try rebooting without your SD card.
Maybe it's just a faulty SD card.
Mine broke once when it was formatted as exFat.

thesjaakspoiler

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Member

Level 8

Apr 18, 2019

<<sorry, posted the same reply twice>>>

Last edited by thesjaakspoiler, Apr 18, 2019

wurstpistole

GBAtemp MVP

Member

Level 16

Apr 18, 2019

Would've helped if you said which NSP you were trying to install exactly.
But yeah, sounds like a brick. Hope you have a NAND backup.

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