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.

mig switch not working/updating??

stickybit · 2024-03-28T19:59:51+00:00

just got my mig switch and followed instructions to the T to update it and all im getting is a red light and then a message saying cart not recognised, all im trying to do is update it to the latest firmware, it says it should flash blue when...

failed to launch hos after copy and paste a game into sd card exfat

Thread starter Conoquente
Start date Dec 29, 2022
Views 1,016
Replies 2

Conoquente

Member

Newcomer

Level 1

Dec 29, 2022

Hi guys, i got this error "unknown pkg1 version, failed to launch hos", after copying and paste a game into my sd card exfat.
I like exfat, because is easier to install the games, but this time i got this error.

What should i do?
Thanks

Draxzelex

Well-Known Member

Member

Level 23

Dec 29, 2022

Conoquente said:
Hi guys, i got this error "unknown pkg1 version, failed to launch hos", after copying and paste a game into my sd card exfat.
I like exfat, because is easier to install the games, but this time i got this error.

What should i do?
Thanks

Your thread was answered here. Please use that thread for any and all future inquiries instead.

Reactions: binkinator and Conoquente

TomSwitch

Well-Known Member

Member

Level 24

Dec 29, 2022

Conoquente said:
Hi guys, i got this error "unknown pkg1 version, failed to launch hos", after copying and paste a game into my sd card exfat.
I like exfat, because is easier to install the games, but this time i got this error.

What should i do?
Thanks

Unrelated to your question but using exfat is very bad idea if you use CFW on a switch