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 Question about MicroSD

Thread starter The3rdknuckles
Start date Apr 16, 2018
Views 1,116
Replies 2

The3rdknuckles

Well-Known Member

Member

Level 9

Apr 16, 2018

Hi fellow tempers!

Just wanted to know what the biggest size microSD card I can use on my 3.0.0 switch without being asked to update.

Ryccardo

Penguin accelerator

Member

Level 17

Apr 16, 2018

If you didn't already "update" to download the FAT64/exFAT driver, then you will need to do so...

All 64+ GB cards must be exFAT out of the box (that's the only filesystem allowed by the SDXC standard), it will probably accept SDXCs reformatted to FAT32

The3rdknuckles

Well-Known Member

Member

Level 9

Apr 16, 2018

Ryccardo said:
If you didn't already "update" to download the FAT64/exFAT driver, then you will need to do so...

All 64+ GB cards must be exFAT out of the box (that's the only filesystem allowed by the SDXC standard), it will probably accept SDXCs reformatted to FAT32

You see the thing is I’m not sure if I did. I think I did cuz I had a 256GB card in it b4, but now I’m using that 256 on my updated switch and only using a 4 in the 3.0.0 switch, but I’m planning on planning on using a 128 in the 3.0.0

Last edited by The3rdknuckles, Apr 16, 2018