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 Mega Man X Legacy Collection Saves?

Thread starter Skeet1983
Start date Apr 10, 2019
Views 3,809
Replies 2

Skeet1983

Well-Known Member

Member

Level 12

Apr 10, 2019

Hi guys. Does anyone have an 100% or near complete saves for Mega Man X Legacy Collections 1 and 2? Also would like same for Mega Man Legacy Collections 1 and 2 as well if possible. Thoughts and help greatly appreciated

naz2x

Well-Known Member

Member

Level 7

Jul 2, 2019

Do you the game save? I am after to. Or can you share yours.

Last edited by naz2x, Jul 2, 2019

Username4321

Well-Known Member

Member

Level 7

Jul 3, 2019

I once tried to hex edit my X8 save to give me enough currency for the absurdly expensive unlockable characters but the game throws up a save corruption error if I load it. Either I changed the wrong value or there are multiple copies I had to change.
I also went through LC 2's files to see if there was a way to fix the bad scaling in MM 9 and 10 (look at the life bar's uneven segments; apparently the game thinks they have a different native resolution than they actually do). Unfortunately, unlike Xenoblade 2 there's no plaintext settings file where I can go "rm9res=256x240." Everything's either in .bin or .lzs and I can't do anything with either.

Last edited by Username4321, Jul 3, 2019