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 CFW on Switch with no SD Card facility?

Thread starter newgen2005
Start date Jul 11, 2020
Views 1,061
Replies 5
Likes 1

newgen2005

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Level 4

Jul 11, 2020

Long story short I took my Switch to be repaired and the outcome wasn't good (soldering not successful on motherboard).

Does this mean my days of CFW are gone?

Reactions: Shadow#1

Xilith

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Level 7

Jul 11, 2020

if you can't repair the sd card reader yes they are gone.

Reactions: RetroGsy

Zumoly

GBATemp Analyst

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Jul 11, 2020

Xilith said:
if you can't repair the sd card reader yes they are gone.

For now.

Reactions: RetroGsy

RetroGsy

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Jul 11, 2020

Xilith said:
if you can't repair the sd card reader yes they are gone.

That’s what I thought, thank you for confirming.

RetroGsy

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Jul 11, 2020

Zumoly said:
For now.

Has there been any talk about this?

Last edited by RetroGsy, Jul 11, 2020

Zumoly

GBATemp Analyst

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Level 12

Jul 11, 2020

RetroGsy said:
Has there been any talk about this?

Not yet.
ReiNX was talking about it at one time though.
My guess is that at some point we could inject/install a modified horizon version (CFW) into the sysnand (internal memory) at will.