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 Serial Number Issue

Thread starter DerekGeneric831
Start date Feb 27, 2020
Views 778
Replies 2

DerekGeneric831

Member

Level 7

Feb 27, 2020

Hey guys, so my friend is having an issue with his switch which is causing alot of issues with alot of the apps including HBGshop..
he doesn't have a Serial Number in the settings due to using Incognito and not doing a Backup or a NAND backup beforehand..
Is there any way to resolve this issue?

wartutor

Well-Known Member

Member

Level 11

Feb 27, 2020

According to https://gbatemp.net/threads/incognito.531924/ incogneto does a backup of the prodinfo on the root of the sd card. I would look there. Also maybe best to ask there as i read on page 4 or something that u can rebuild it if its lost but they would know more :switch:

DerekGeneric831

Member

Level 7

Feb 27, 2020

wartutor said:
According to https://gbatemp.net/threads/incognito.531924/ incogneto does a backup of the prodinfo on the root of the sd card. I would look there. Also maybe best to ask there as i read on page 4 or something that u can rebuild it if its lost but they would know more

he doesnt seem to have the prodinfo on his sd card, looks like he may have deleted it.
I might ask on that page, thanks man