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...

Corrupted SD card with Mac - Any way to fix? | GBAtemp.net - The Independent Video Game Community

britain4

Well-Known Member

Member

Level 9

Dec 24, 2020

As the thread title says... made the mistake of trying to manage my Switch’s SD card using my Mac and I think I may now need to format my SD card but wondered if anyone had any advice.

After messing up all the archive bits and creating a load of junk files using Finder on the Mac (which I fixed and carried on using the Switch) I switched to using Windows 10 in Parallels which started giving errors when copying/deleting files on there.

Patched V1 - SX Core + latest Hekate + AMS booted fine earlier on before the corruption started, now gives a black screen on trying to load Hekate. Card has always been FAT32.

Booting SX on the emuNAND loads past the Nintendo logo and briefly flashes up the switch logo before restarting and going into a boot loop so it seems like it’s also messed up my emuNAND. Sysnand still boots up fine.

Any way of correcting an SD card once it’s corrupted like this - if not I’ll have to reformat after Christmas, good thing I backed my saves up.

Edit: Apologies for wrong section. Actually managed to sort this, not sure why Hekate wasn’t booting but it is now, SXOS wasn’t booting due to something in the titles folder it didn’t like.

Last edited by britain4, Dec 24, 2020

Hardware Corrupted SD card with Mac - Any way to fix?

Well-Known Member

Similar threads

Popular threads in this forum