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...

BennuGD2 (Bennu Game Development 2)

Rufidj

New Member

Newbie

Level 1

Dec 14, 2023

Hello! First of all, don't worry about your English. A few months ago, I asked for help to try to port and compile BennuGD for the Nintendo Switch console, but given my knowledge, it was impossible for me.

For those unfamiliar with BennuGD, it's an open-source game development language with a modular design intended to facilitate the portability of projects created in it, making it one of the best languages for this purpose.

I usually frequent the forums and the project's Discord, and one day, while talking with its creator SplinterGU, he got to work and managed to port BennuGD2 to our Nintendo Switch, which I personally tested.

Search for SplinterGU's BennuGD2 GitHub (I'm not allowed to add links).

"If you want to compile it for your Nintendo Switch, you'll need devkitpro installed and follow these steps:"

Step 1: Build SDL_gpu

Go to the vendor directory and run the sdl-gpu-patch-*.sh scripts.

Then run ./build-sdl-gpu.sh with appropriate options, for example:
./build-sdl-gpu.sh switch clean

Step 2: Build BennuGD2

Navigate to the project root and run ./build.sh with suitable options:
./build.sh switch clean

This generates the bgdi.elf file, which will be the interpreter for the compiled dcb files that will be the games or applications. The bgdi.elf file will be responsible for loading and running the dcb, which should be named game.dcb.

It's advisable to encapsulate everything in an NRO or an NSP. The BennuGD2 repository includes a script to generate an NRO from the compilation of the dcb file.

If you don't want to compile it yourself, as long as it doesn't violate forum rules, I can upload the bgdi.elf file.
Any questions, feel free to ask. Greetings and thank you!

Last edited by Rufidj, Dec 14, 2023

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