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.

ROM Hack RELEASE AI Somnium Files HIGH QUALITY Graphics mod

Thread starter orangpelupa
Start date Oct 7, 2019
Views 7,989
Replies 4
Likes 6

orangpelupa

Well-Known Member

Member

Oct 7, 2019

Comparison video

Download HIGH QUALITY Graphics mod Mod for AI Somnium Files
option 1: with high quality shadow (but shadows looks buggy in some places)
option 2: with standard quality shadow (all hard shadows looks like stairs)

To apply:
extract the atmosphere folder to MicroSD root directory (D:\ or E:\ or whatever)
You will see BLUE unity splash screen if the mod is active

SPECIAL THANKS TO @masagrator for pointing the config file

Last edited by orangpelupa, Oct 8, 2019

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yamato123

Active Member

Newcomer

Level 3

Oct 7, 2019

thanks man

Dlimix

Member

Newcomer

Level 2

Mar 4, 2020

Amazing mod, besides the shadows i also noticed that in the first scene of the game the rain particles are missing after enabling aa.

Last edited by Dlimix, Mar 4, 2020

orangpelupa

Well-Known Member

Member

Level 7

May 8, 2020

anyone know HOW THE HECK did i do this mod? I need to do graphics mod on other unity game but I TOTALLY FORGOT WHAT I DID in AI somnium files

argh my brain

masagrator

The patches guy

Developer

Level 22

May 8, 2020

orangpelupa said:
anyone know HOW THE HECK did i do this mod? I need to do graphics mod on other unity game but I TOTALLY FORGOT WHAT I DID in AI somnium files

argh my brain

UABE, globalgamemanager?

Reactions: orangpelupa