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...

ROM Hack [Request] Bloodstained Ritual of The Night save editor/hex editing

Thread starter Tere Valentin
Start date Jun 23, 2019
Views 12,780
Replies 4

Tere Valentin

Well-Known Member

Member

Level 11

Jun 23, 2019

@Topic. Since no ones made this request yet.

Thru hex locations or using a save editor, I would like to change the following:
--money
--exp
--all character stats
--Ammount of items/ingredients/fragments in inventory

If there are SX cheats available; even better.

Deleted User

Guest

Jun 25, 2019

bumping for interest

badman112

Well-Known Member

Member

Level 6

Jun 26, 2019

Just use my save for now its ready for new game plus and its pretty much got everything you need. Just update with new update and your good to go.

With an editor you could add story items and end up playing the games backwards.

Would also like to see an editor too.

Last edited by badman112, Jun 26, 2019

Reactions: Wollyy

Wollyy

Active Member

Newcomer

Level 3

Jun 28, 2019

badman112 said:
Just use my save for now its ready for new game plus and its pretty much got everything you need. Just update with new update and your good to go.

With an editor you could add story items and end up playing the games backwards.

Would also like to see an editor too.

Great!! where is your save??