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...

Hardware MIcro-sd question

Thread starter rubinorosso93
Start date Jul 31, 2020
Views 1,001
Replies 6

rubinorosso93

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Level 4

Jul 31, 2020

guys but playing the switch with the games installed on micro sd, if the sd is full the games start to load more slowly?

pedrosuarez

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Jul 31, 2020

it shouldn't load slow although it fills the memory, it all depends on what kind of sd card i buy, there are some slower and others faster. I use the translator I hope you understand what I wrote.

rubinorosso93

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Level 4

Jul 31, 2020

so if is 99 % full or 10% full the speed will be the same?

pedrosuarez

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Aug 1, 2020

yes, once I fill all my sd card and it worked perfectly, just make sure that the sd card is a recognized brand and minimum class 10, if you have more money you can buy sd with higher speeds.

rubinorosso93

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Aug 1, 2020

ok ty so much, same process work with internal memory of switch ? or more full more slow?

x65943

i can be your sega dreamcast or sega nightmarecast

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Aug 1, 2020

If the switch internal memory is close to full it should still also function just fine. The era of HDDs and needing to defrag them is over with solid state storage.

Reactions: pedrosuarez