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...

Retroarch A button problem GB/GBC games

chaoticdaos

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Feb 8, 2024

Edit: Solved!
I tried to add a hotkey in the input tab and a button or button zero was my choice to get fast forward and rewind going.
Moved to r3. Click right stick.
Strange side effect IMO

Hi!
Retroarch forums wants me to wait... I could not post there yet.
So in Retroarch for Legend of Zelda Links awakening and DX version - Oracle of Ages/Seasons - Metroid 2

The emulators mGBA, Vba-m/Gambatte, DoubleCherryGB, Gearboy, Sameboy, TGB dual and mesen all have this problem on the Nintendo Switch on retroarch 1.9.14 - no core.

The A button does not hold properly. Its holding my position and link can not move. But the shield does not stay up and the sword does not charge up. The yoshi from the trendy game is inaccessible.
Samus can not reach the height of her jumps.
Turbo works. But thats not what i need.

The mGBA from the HB app store works.
So i guess this is an input driver issue in retroarch?

Last edited by chaoticdaos, Feb 12, 2024

Retroarch A button problem GB/GBC games

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