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 Question Can i use this with a usb instead a rcm loader to inject my payload

Thread starter SirKira001
Start date Aug 5, 2020
Views 4,499
Replies 6

SirKira001

Active Member

Newcomer

Level 3

Aug 5, 2020

Is it possible?

Deleted User

Guest

Aug 5, 2020

Yes you can. Mind if I ask where you can buy this item?

JFizDaWiz

Well-Known Member

Member

Level 11

Aug 5, 2020

[redacted]

Last edited by JFizDaWiz, Jun 1, 2023

Windi

Well-Known Member

Newcomer

Level 3

Aug 5, 2020

SirKira001 said:
Is it possible?

You have to be more precise. Is it possible to connect your switch to a computer or an Android Phone? Yes it is.
Is it possible to connect a USB stick and use it to inject a payload? No, that is not possible.

BaamAlex

UDE GA NARU ZE!

Member

Level 17

Aug 5, 2020

json said:
Yes you can.

The other question is, how should this be possible? A simple usb flash drive can't be used as a payload injector.

SANICspeed

Active Member

Newcomer

Level 2

Aug 5, 2020

Well, no, you can't use this with just any common usb stick. But what you can do (i'm doing it this way) is using a usb-c otg adapter(like shown in your pic), a usb-c/microusb cable to your (android)phone and an app called Rekado for basicly the same function as one of those payload injectors would have.

Reactions: BaamAlex