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...

Homebrew Question Flycast retroarch sx core os error

Thread starter minino10
Start date Sep 26, 2020
Views 1,163
Replies 2

minino10

Member

Newcomer

Level 1

Sep 26, 2020

Hello, I was wondering if anyone knows how to solve the flycast error in retroarch in sx core os, it is the only core that throws an error. I would appreciate help to be able to play dreamcast, thank you very much.

Legend Of Kay

Well-Known Member

Member

Level 6

Sep 27, 2020

I'm pretty sure Flycast just doesn't work on SXOS. Whether purposefully or just by chance i'm not sure but i'm pretty sure it just doesn't work

hartleyshc

Well-Known Member

Member

Level 8

Sep 29, 2020

Legend Of Kay said:
I'm pretty sure Flycast just doesn't work on SXOS. Whether purposefully or just by chance i'm not sure but i'm pretty sure it just doesn't work

It doesn't. It's a limitation of SX. It's not purposeful as the way it handles dynarec is supported by Atmosphere/Hekate, but not by SX.

It was added to Atmosphere over a year ago and still nothing on the SX side, so I don't expect them to be adding it any time soon, even after multiple feature requests over at the TX forums.

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