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.

Mimikyu · 2024-03-30T15:42:14+00:00

Hello, little problem again... I tried to update my Switch again because of the new 18.0.0 Update of Nintendo. I'm reading a lot on the Website WiiDataBase and that's how and why i wanted to update now. My problem is that i can't access my custom...

Hacking tinfol and hekate

Thread starter aerios169
Start date Mar 12, 2021
Views 2,294
Replies 2

aerios169

Well-Known Member

Member

Level 10

Mar 12, 2021

well i was a SXOS user and i have the pro dongle so i need to use hekate to boot into atmosphere because sx pro dongle doesnt support the payload of atmosphere...... but i want to use tinfol ( yep is not compatible with it), so what i can do right now ?, i have read that i can use a code or something like that

glowy

Well-Known Member

Member

Level 5

Mar 13, 2021

You can use Cling-wrap https://github.com/wilsam239/Cling-Wrap/releases
Start before using Tinfoil, it renames the bootloader folder. After you are done with Tinfoil start cling-wrap again to rename it back.

Reactions: ELY_M

Draxzelex

Well-Known Member

Member

Level 23

Mar 20, 2021

aerios169 said:
well i was a SXOS user and i have the pro dongle so i need to use hekate to boot into atmosphere because sx pro dongle doesnt support the payload of atmosphere...... but i want to use tinfol ( yep is not compatible with it), so what i can do right now ?, i have read that i can use a code or something like that

You are better off switching to TinWoo Installer in the long run.