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 Question Checkpoint crash

Thread starter nico00
Start date Dec 23, 2019
Views 9,930
Replies 6

nico00

Member

Newcomer

Level 1

Dec 23, 2019

Every time i try to turn on cheats using checkpoint my switch crashes with this error:

Can you help me?

TTG

New Member

Newbie

Level 1

Dec 27, 2019

Mine has the same problem

Notorious45

New Member

Newbie

Level 1

Dec 30, 2019

Me 2 suddenly it was working on the 24th and now just crashing when ever i press right stick

Lacius

Well-Known Member

Member

Level 26

Dec 31, 2019

Are you using applet mode, or are you using title override? The latter is highly recommended.

piponito

Member

Newcomer

Level 3

Dec 31, 2019

Me too, using override mode with R pressed.

Reactions: TTG

TTG

New Member

Newbie

Level 1

Dec 31, 2019

piponito said:
Me too, using override mode with R pressed.

how and where do i enable overide mode?

TGG181

Active Member

Newcomer

Level 2

Mar 19, 2020

TTG said:
how and where do i enable overide mode?

when you start a game, press and hold the R button, this will override the title and launch you into the homebrew menu without using applet mode (which limits the amount of ram the apps in homebrew can use)