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.

Fusee.bin with the new Pre-release of Atmoshere 1.7.0

Mimikyu · 2024-03-30T15:42:14+00:00

Hello, little problem again... I tried to update my Switch again because of the new 18.0.0 Update of Nintendo. I'm reading a lot on the Website WiiDataBase and that's how and why i wanted to update now. My problem is that i can't access my custom...

Hacking Question little problem with NSP installation

Thread starter choco_crafteur
Start date Aug 9, 2018
Views 1,870
Replies 3

choco_crafteur

Member

Newcomer

Level 2

Aug 9, 2018

Hello, I downloaded the last South Park game with CDNSP GUI by BOB v4 in NSP format.

but when I try to install it with DevMenu it gives me an error and when I try with the SX OS built-in nsp installer the game was installed but my console ask me to buy the game on the eShop ...
how to bypass this message ?
my other games in NSP format works fine, so I don't understand why this game doesn't work ...
can you bring me some help ? thx

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2018-32-4-1533811191-2018080912001700-57b4628d2267231d57e0fc1078c0596d.jpg

Loke

Well-Known Member

Member

Level 5

Aug 9, 2018

This is an update, you installed the update and not the base game.

oufai

Well-Known Member

Newcomer

Level 3

Aug 9, 2018

You installed the update not the Basic game try to install the base game first than install this update !

choco_crafteur

Member

Newcomer

Level 2

Aug 9, 2018

Loke said:
This is an update, you installed the update and not the base game.

Oh ... Maybe it's an update ... I'll check it
Thanks

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yes it's an update, a 6 GB update ...
It's strange beacause I've selected base game+upd+dlc on CDNSP GUI ...
I don't know where is the base game :wtf: