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.

Cartridge removed error on Sx Os 2.2

SolanaRafael

Member

Newcomer

Nov 15, 2018

Hi all

Been here for months but never really had to login to ask myself thanks to the great guides and tutorials and the search button

this time however maybe I'm too blind but can't seem to find an answer to my recent issue

I'm using Sx Os 2.2 and I'm on 6.1 (most recent I think with joycon updates) I'm playing let's go Pikachu xci through USB HDD and Evey time my console goes to sleep mode when I come back and do the button combination to resume playing I get the error as if the cartridge has been removed and I have to go back to the album to load it, only this will cause an error and have the whole CFW crash on me and have to reinject payload and so on.

Ive found a way around it which is basically loading a different game, running it and then loading and running let's go pikachu again, needless to say it's very inconvenient as I must always remember to save before leaving console on idle.

Any ideas or previous experience with this?

I appreciate your help very much

Last edited by SolanaRafael, Nov 15, 2018