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.

duckstation for Switch

catlover007 · 2024-04-22T04:06:40+00:00

duckstation is an excellent Playstation 1 emulator by Stenzek. It has a very good compabiility and it is quite performant. It also supports all kinds of enhancements such as high resolution rendering and PGXP which can lessen the "wobble" and...

Pokémon SwSh unable to access Y menu when offline

realrj

Well-Known Member

Member

Level 5

Nov 18, 2022

Hi everyone

I have been struggling since 2 days ago with something really strange.
I was playing just fine, and all of a sudden, I lost access to the y menu and any other comm related menus (Vs menu, mistwry gifts). They all close down almost immediately.
Also, this gigantic lag happens at the same time, the game just freezes for a couple seconds, then resumes, and then it freezes again

After some testing, I confirmed this only happens if I don't have an internet connection. If I reconnect to my network, the game runs just fine.

I wanted to turn off the internet to focus on local comm with my brother and I was not able to and someone told me that if you have an internet connection, it can sometimes mess with the local comm. But I never expected this.

Any ideas?
I already turned off my switch, waited a few minutes, turned back on, but the issue happens again

I currently have ams1.3.2 and FW 14.1.2, playing on emunand.

Post automatically merged: Nov 18, 2022

If it helps anyone. I completely reinstalled ams and newest fw and it resolved the issue.

Last edited by realrj, Nov 18, 2022

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