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.

Hacking hid-mitm brick my switch

Thread starter FINAL94
Start date Jul 28, 2019
Views 2,172
Replies 6

FINAL94

Member

Newcomer

Jul 28, 2019

I have activate hid-mitm on my consolle 8.1.0 and cfw kosmos on sysnand and now is brikked on the nintendo logo and don't boot. I have only a 4.1 virgin backup there is a way for fix this problem and not lose anything???

antiNT

:)

Member

Level 12

Jul 28, 2019

Does your console boot without the SD card inserted ?

FINAL94

Member

Newcomer

Level 2

Jul 28, 2019

antiNT said:
Does your console boot without the SD card inserted ?

No I have autorcm enabled and on hekate 5.0.1 no option for turn it of

antiNT

:)

Member

Level 12

Jul 28, 2019

Try to reinstall Kosmos from scratch (delete everything on your sd card and start fresh)

v18281

Well-Known Member

Newcomer

Level 7

Jul 28, 2019

get the files from hidmitm github for the lastest update. i had the same problem and this fixed it.

FINAL94

Member

Newcomer

Level 2

Jul 28, 2019

antiNT said:
Try to reinstall Kosmos from scratch (delete everything on your sd card and start fresh)

Thanks now is all ok... before i tried to reinstall but i overwrite the data... now seem to work perfectly. Sorri for the noob question but i was in panic

Reactions: NoNAND

antiNT

:)

Member

Level 12

Jul 28, 2019

FINAL94 said:
Thanks now is all ok... before i tried to reinstall but i overwrite the data... now seem to work perfectly. Sorri for the noob question but i was in panic

Happy to help !

Reactions: NoNAND