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 How would I recompile older homebrew with new LibNX

Thread starter OldGnashburg
Start date Mar 15, 2020
Views 1,188
Replies 3
Likes 1

OldGnashburg

Cobra Chicken Summoner

Member

Level 12

Mar 15, 2020

I really want to recompile the Meritious port and maybe a couple older homebrew with the new LibNX so I can get inputs working again? The only experience I have with compiling software is when I built CEN64 and vWii SNEEK from source and those were with tutorials/build instructions Can anybody give me pointers?

Last edited by OldGnashburg, Mar 15, 2020

Reactions: Swiminaha

Swiminaha

Well-Known Member

Newcomer

Level 3

May 23, 2021

would also be intressted in this kind of stuff, just for fun,to update old homebrew stuff for newest versions :3

Deleted User

Guest

May 27, 2021

without touching the source code I would say just install the corresponding older version of libnx.

Djakku

Well-Known Member

Newcomer

Level 7

May 29, 2021

You need the source code and recompile it.
The compiler might give some error, specially if the libraries used have been updated to newest firmware.
If that is the case, you need to modify the code to matches with the new library code.

If you want to keep running a homebrew that is not supported with the newest firmwares, you can make an emunand and downgrade it with daybreak.

Hope this helps.

Last edited by Djakku, May 29, 2021