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...

Hacking Will AutoRCM prevent game cart fuses from being burnt?

Thread starter HairHuntTroop
Start date Mar 31, 2020
Views 1,283
Replies 2

HairHuntTroop

Member

Newcomer

Level 2

Mar 31, 2020

I'm running the latest build of Atmosphere and I just updated my firmware with ChoidujourNX to 9.0.2. My game carts aren't reading naturally and I read I need to disable nogc in Hekate to solve this. However, doing so will burn the fuses for the game cart slot preventing lower firmwares from accessing them in the event of a downgrade.

Does AutoRCM also prevent those fuses from burning once I disable the nogc check? I just wanna make sure being making this decision.

Hardline

GBAtemp Advanced Fan and Power Metal Fan

Member

Level 10

Mar 31, 2020

all you fo wromg wll crash your game or conole så take it easy my boddy

pLaYeR^^

Doctor Switch

Member

Level 13

Mar 31, 2020

Yes, disabling the nogc patch will update your game card slot. AutoRCM prevents fuses of your switch from burning. So if you disable nogc, you won't be able to use game cards on lower firmware than 9.0 anymore.

Last edited by pLaYeR^^, Mar 31, 2020