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 Switch sofware

Thread starter Zygizz
Start date Sep 12, 2018
Views 1,336
Replies 6

Zygizz

Member

Newcomer

Level 3

Sep 12, 2018

Sorry if am wrong thread , am now using sx os how to upgrade firmware ?

just boot into normal nintendo os and update ?

Kubas_inko

"Something funny goes here."

Member

Level 15

Sep 12, 2018

That's one way of doing it.

Reactions: CymraegAce

Rushhour77

Well-Known Member

Newcomer

Level 4

Sep 12, 2018

Which firmware are u now and what firmware do u want?

CymraegAce

Well-Known Member

Member

Level 5

Sep 12, 2018

The safest way would be to flash your NAND back to a pre-SX state, then upgrade Horizon.!

n.b once updated, backup your new updated NAND state, take device off-grid then setup your SX environment again..

Zygizz

Member

Newcomer

Level 3

Sep 12, 2018

now 5.1 firmware and want latest firmware

CymraegAce

Well-Known Member

Member

Level 5

Sep 12, 2018

So, as I said above. Follow what I said, assuming you have a pre-SX NAND backup to work with, if not, backup your saves, reset the console & update within a clean Horizon environment..

This’ll give you the best chance of dodging the ban waves.. Have fun..

Rushhour77

Well-Known Member

Newcomer

Level 4

Sep 12, 2018

What CymraegAce said, restore or reset console if u want to minimize banhammer.
Can I ask why u want to upgrade to an unreleased firmware? Isnt 5.1.0 the latest official firmware?