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...

ROM Hack The Witcher game files can’t be installed

Thread starter saggan
Start date Oct 16, 2019
Views 2,683
Replies 3

saggan

Well-Known Member

Newcomer

Level 3

Oct 16, 2019

I downloaded the 31 gb game from a torrent file but as I copy the nsp files to my switch it can’t be installed and appears as white files in the sx installer

any idea why is that and can I fix it or the files are corrupt and I just have to download the hole game again ?

Champz

New Member

Newbie

Level 1

Oct 16, 2019

You need to have atleast another 31gb (same size of the game you try to install) of free space in your memory card in order to install the NSP.

grimandrey

Member

Newcomer

Level 8

Oct 17, 2019

I had the same issue, and i just had to download different versions that were available until i got lucky. It was actually in the custom xci that ended up working for me.

Joaquim133

Member

Newcomer

Level 1

Nov 22, 2019

Idem, I dl two the wither iii releases and it don't work. Blank icon and "nca signature fail". I now i can put the konami code but i don't want. indeed, i've installed a newer game (released after the witcher) with a blank icon too, but the install worked perfectly!
SXOS: tried with installer and tinfoil.