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...

Hacking What's the best way to transfer saves to an unmodded switch.

Thread starter MLGBigSmoke35
Start date Sep 4, 2023
Views 1,052
Replies 2

MLGBigSmoke35

Member

Newcomer

Level 1

Sep 4, 2023

Hey guys I'm trying to have a setup to where I can cross save with my mariko switch and my pc. I figure the best way to go about it is to use incognito mode and export saves from the emmnand. Then go into the modded sysnand(still in incognito) and import them. After that I boot into the stock firmware and just use the cloud save utility or the transfer save utility. Does this sound ok?

Astoria

Well-Known Member

Member

Level 8

Sep 4, 2023

Incognito is obsolete, don't use it, current setup uses Exosphere to blank prodinfo on boot.

Apart from that it sounds good, there's a non-zero risk ban for the source console, you have to be aware of that, but this is the safest you can be.

MLGBigSmoke35

Member

Newcomer

Level 1

Sep 4, 2023

Alright thanks. I've thought about accessing the sysmmc filsystem on pc to transfer the saves, but I've seen some people get banned over doing that. I figure this way is probably easier to not mess up with.