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...

Gaming Is it possible to update .xci game using .nsp update

Thread starter movietime
Start date Apr 3, 2019
Views 19,358
Replies 7

movietime

Well-Known Member

Newcomer

Level 3

Apr 3, 2019

Hi, I'm looking for Mario Kart 8 .XCI update but without any luck. I have .nsp upate available.
I am running SX OS and wondering if .xci game can be updated using .nsp update? Any gotchas/issues?

Thx

masagrator

The patches guy

Developer

Level 22

Apr 3, 2019

Updates are only in NSP. XCI is only a copy of cartridge.

Joe88

[λ]

Global Moderator

Level 18

Apr 3, 2019

Just have to make sure that update was made for the cart version of the game and it will update fine.

masagrator

The patches guy

Developer

Level 22

Apr 3, 2019

Joe88 said:
Just have to make sure that update was made for the cart version of the game and it will update fine.

But most games shares the same titleid for cartridge and eshop release in the same region. So your statement may confuse someone.

movietime

Well-Known Member

Newcomer

Level 3

Apr 3, 2019

so how can I confirm if the update was made for the cart version?

masagrator

The patches guy

Developer

Level 22

Apr 3, 2019

XCI Explorer can check titleid of NSP and XCI files.
If they have first 13 characters the same, then they are compatible.

movietime

Well-Known Member

Newcomer

Level 3

Apr 3, 2019

Thx masagrator

Xizix

Active Member

Newcomer

Level 5

Apr 4, 2019

Check under Updates on the HBG and if they show up, then the're compatible.

At least, that's my understanding, and so far I haven't had any issues updating games that I original installed with a XCI file.