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

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Hacking update firmware to a newer version question

Thread starter ej2095
Start date Jul 15, 2021
Views 822
Replies 2

ej2095

Member

Newcomer

Level 1

Jul 15, 2021

Hiya

Updated to Atomphere on.

The switch it self has firmware 6. How do i do a manual update to a newer version?

petspeed

Well-Known Member

Member

Level 9

Jul 16, 2021

As I understand you have updated Atmosphere to the latest version, correct? If so then you can update your Switch firmware with Daybreak (comes with Atmosphere). You can download firmware from Darth's site (Google it, not allowed to share link here).

If you haven't updated Atmosphere you need to do that first. Check this guide: https://nh-server.github.io/switch-guide/extras/updating/

Draxzelex

Well-Known Member

Member

Level 23

Jul 24, 2021

ej2095 said:
Hiya

Updated to Atomphere on.

The switch it self has firmware 6. How do i do a manual update to a newer version?

You can use either ChoiDujourNX, ChoiDujour, Daybreak, or even blawar's DZ to update your firmware. You can also technically update with another Switch if it is running a game version that is higher than the source console.