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 Fary Tail Performance mod??

Thread starter Maverick81PL
Start date Jul 31, 2020
Views 4,788
Replies 7
Likes 1

Maverick81PL

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Jul 31, 2020

Hi, can someone make performance mod for Fairy Tail on Switch? Thanks

Reactions: Nikoru

Nikoru

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Aug 2, 2020

I was looking for that kind of mod as well
The game runs terrible on switch

Dust2dust

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Level 14

Aug 2, 2020

Maybe overclocking a bit would help?

Nikoru

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Aug 3, 2020

Dust2dust said:
Maybe overclocking a bit would help?

Nope, it doesn't

Maverick81PL

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Aug 3, 2020

NikkoKozukata said:
Nope, it doesn't

OC Help, stable 30 FPS if you put OC to max!

Nikoru

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Aug 3, 2020

Maverick81PL said:
OC Help, stable 30 FPS if you put OC to max!

I OC'd max i still get 20 fps on guild and most of the dialogue scenes

Loonelywolf

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Aug 3, 2020

The thing that helped was to put the game on the intern memory...it still as some lag but no so much...

Nikoru

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Aug 6, 2020

It looks like it runs at 60fps when OC'd in Handheld mode but in Docked there's isnt much of a difference.

So smooth at handheld I might try ReverseNX so I can play it in 60fps on dock

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