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.

mig switch not working/updating??

stickybit · 2024-03-28T19:59:51+00:00

just got my mig switch and followed instructions to the T to update it and all im getting is a red light and then a message saying cart not recognised, all im trying to do is update it to the latest firmware, it says it should flash blue when...

Hacking ROM Hack Reversing Splatoon 2

Thread starter cshark666
Start date Jan 22, 2022
Views 983
Replies 4

cshark666

New Member

Newbie

Level 1

Jan 22, 2022

Hello, so I’m trying to reverse executable/binary of Splatoon 2
but I don’t know in which directory of the game is the Binary for I load it in ida and try finding offsets

thanks in advance for help

DrPickles

Well-Known Member

Newcomer

Level 4

Jan 22, 2022

You can't even find the file and you want to reverse engineer it?

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cshark666

New Member

Newbie

Level 1

Jan 22, 2022

DrPickles said:
You can't even find the file and you want to reverse engineer it?

I don’t own a jailbroken switch for now, so can’t search for it + yes why not I already reversed many Unity games using IL2CPPDUMPER and many non-Unity games

DrPickles

Well-Known Member

Newcomer

Level 4

Jan 22, 2022

If you can't dump your own game, you can't reverse it. Once you get that equipment then you can easily find your executable.

Reactions: ChibiMofo

Shadow#1

Wii, 3DS Softmod & Dumpster Diving Expert

Member

Level 18

Jan 22, 2022

cshark666 said:
I don’t own a jailbroken switch for now, so can’t search for it + yes why not I already reversed many Unity games using IL2CPPDUMPER and many non-Unity games

So u think since u used someone's tool u can do it on anything without a tool made by someone else [emoji2357]