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 Are savefiles from SYSNAND compatible with emuMMC?

Thread starter Bahamut2
Start date Sep 16, 2019
Views 3,232
Replies 3
Likes 1

Bahamut2

Active Member

Newcomer

Level 3

Sep 16, 2019

I created emuMMC from Atmosphere and i noticed that it can see all my digital games installed on SYSNAND and also read the savefiles.
Does it mean i can play with my games from SYSNAND on emuMMC and save from Atmosphere, and continue playing with OFW?
Is it risky somehow?

Thanks

Reactions: NoNAND

RHOPKINS13

Geek

Member

Level 11

Sep 16, 2019

When you created your emuMMC, it made an exact copy of everything that was on your sysnand. If you continue your games in emuMMC, you won't see your progress in sysNAND, and vice-versa.

Everything is "compatible" though. You could use Checkpoint to save and restore saves between sysNAND and emuMMC, although this is considered risky as far as bans go.

Reactions: NoNAND

Bahamut2

Active Member

Newcomer

Level 3

Sep 16, 2019

Ok thanks, i will not do it then, i dont want to risk for a ban.
So that means i can delete all the savefiles from the emuMMC and they wont be deleted on the real SYSNAND right?