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.

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Homebrew Question How to increase amount of memory in Mupen64Plus (Retroarch) to play N64 rom hacks?

Thread starter Paniques
Start date Feb 14, 2020
Views 10,589
Replies 3

Paniques

New Member

Newbie

Level 1

Feb 14, 2020

Title says it all. How do I increase the amount of memory in the core so that I can play N64 rom hacks, like what I would do for Project64.

Draxzelex

Well-Known Member

Member

Level 23

Mar 7, 2020

Paniques said:
Title says it all. How do I increase the amount of memory in the core so that I can play N64 rom hacks, like what I would do for Project64.

Hold R over a game/title to launch the homebrew menu.

Reactions: manchesterraver

ZachyCatGames

Well-Known Member

Member

Level 14

Mar 9, 2020

Draxzelex said:
Hold R over a game/title to launch the homebrew menu.

Not what they mean. Other n64 emulators give you an option to have 4mb or 8mb of emulated memory, the 8mb option effectively emulates the memory expansion pack thing and is required by some games & rom hacks.

OP, I’d ask on retroNX, maybe there’s some config file you can control it in, idk.

1NOOB

Well-Known Member

Member

Level 10

Mar 9, 2020

its already on , once you lauch your game , press start+select to get the game option (not retroarch option ) just over the controller player pak , you have the disable expansion pak to fasle .