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...

Gaming Online Splatoon 2 with OFW 4.0.1 ?

Thread starter Maxxoux
Start date Jan 23, 2018
Views 1,076
Replies 4

Maxxoux

Active Member

Newcomer

Level 1

Jan 23, 2018

Yo,

i have a nintendo switch and i updated it to 4.0.1 to play Splatoon 2. I want to play online without updating to the lastest firmware. Can i do this ?
Thanks

Shadow#1

Wii, 3DS Softmod & Dumpster Diving Expert

Member

Level 18

Jan 23, 2018

Maxxoux said:
Yo,

i have a nintendo switch and i updated it to 4.0.1 to play Splatoon 2. I want to play online without updating to the lastest firmware. Can i do this ?
Thanks

Reactions: HaloEliteLegend

Maxxoux

Active Member

Newcomer

Level 1

Jan 23, 2018

Okay, because i can play online with mario kart 8 without updating my switch

HaloEliteLegend

Zzzz

Member

Level 12

Jan 23, 2018

Likely because Mario Kart 8 Deluxe isn't updated often. Splatoon, on the other hand, gets an update every week, and so the latest FW is mandatory for playing online.

Maxxoux

Active Member

Newcomer

Level 1

Jan 23, 2018

Thanks

HaloEliteLegend said:
Likely because Mario Kart 8 Deluxe isn't updated often. Splatoon, on the other hand, gets an update every week, and so the latest FW is mandatory for playing online.

Thanks for this explanation ! I get the idea of why i need the newest FW

Reactions: Deathscreton and HaloEliteLegend