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...

Splatoon 3 not working on SysMMC (other online games working ok)

kevilhena

New Member

Newbie

Level 1

Dec 27, 2023

My switch uses GNX firmware, and is updated to the latest, system firmwares too. Everything updated.

There, i have emuMMC, SysMMC + Incognito, SysMMC and Official Firmware, right? So, I recently bought pokemon and was playing well by sysMMC to play online and everything.
Then after millions of years I tried to play Splatoon 3 again and I coudn't, I enter the lobby and never connect. It shows “communication error” right away. I tested it on a friend’s switch (original, not moddified) and it worked normally. When I bought Splatoon 3 at the beggining, I played well on SysMMC. Now it’s not working. All other online games works normally on SysMMC, even playing N64 by switch online with a friend i can.

Anyone know whats happening?

I searched on a facebook group and someone said to do a reset at the sysnand, but i dont know how to do it. And how risky it is.

Hacking Splatoon 3 not working on SysMMC (other online games working ok)

New Member

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