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...

Applying cheat to Citra Retroarch on Switch

kaminiisama

Member

Newcomer

Level 1

Nov 18, 2022

Hi,
First and foremost thanks for coming in

The context

I want to apply cheat for Persona Q on switch retroarch's Citra

Technical background

Nintendo Switch OLED

FAT32 sd card

Running on EmuNAND, atmosphere 1.4.0, Firmware HOS 15.0.1

Retroarch 1.12.0 with core version 1.9.14 (to keep the savestate)

ROM: Persona Q - Shadow of the Labyrinth v1.0 [0004000000123400][USA][Decrypted].3ds

I got the cheat list from gbatemp thread

My understanding

I've zero understanding how it works, so I read the official manual from libretro

What I did by following the manual

Changing the cheat file name into titleID.txt, which is 0004000000123400.txt

I make the 0004000000123400.cht as well to make sure it works

The directory on retroarch switch looks different from manual, which is retroarch/cheats/Citra/ instead, I put both of the .txt and .cht in there

I also add both cheat into another folder, which is retroarch/cores/savefilesCitra/cheats/

Adding *citra_enabled to a cheat that I want to activate. Here's some example:

[Experience x100 After Battle v1.0]
*citra_enabled
002474D4 E3A01064
002474D8 E0050195
002474DC E1A00000

Result

nothing, the cheat not automatically applied neither I see any cheat list to toggle on the game when I press (+) + (-). When I select the cheat files, applying it, it doesn't affect anything.

another minor problem