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 PegaSwitch DNS

Thread starter ehnoah
Start date Oct 5, 2017
Views 2,860
Replies 3

ehnoah

Well-Known Member

Member

Level 6

Oct 5, 2017

Does it block Updates for Systemupdate, if you run your switch over the PegaSwitch DNS or block them as well?

TheCyberQuake

Certified Geek

Member

Level 14

Oct 5, 2017

In my experience no it does not. I used fiddler proxy in conjunction with pegaswitch dns, and pointed the connection test for switch in fiddler to the pegaswitch dns. Then I just attempt to connect to the network, and then it connects to pegaswitch while still blocking updates.

syntaxyz

Well-Known Member

Newcomer

Level 7

Oct 5, 2017

Pegaswitch DNS does not let you resolve any host-names if used as is (both primary and secondary DNS), so yeah it blocks updates as well as any other URL the system would try to reach.

TheCyberQuake

Certified Geek

Member

Level 14

Oct 5, 2017

syntaxyz said:
Pegaswitch DNS does not let you resolve any host-names if used as is (both primary and secondary DNS), so yeah it blocks updates as well as any other URL the system would try to reach.

For some reason for me it was still seeing an available update after setting it as both dns