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...

Front-page ROM Hack Updated

Switch custom themes sharing thread

Since we got custom themes working on switch we have been stuck on a major issue: home menu's SZS files are illegal to share because they contain copyrighted data.
This is the reason why I developed the nxtheme format: it's a custom container for switch themes that's 100% legal and that works on every firmware.
Use this thread to post your own custom themes, if you have any question ask in the Switch theme injector release thread.

TLDR; Now themes are nxtheme files, they can be installed with NxThemes Installer on any switch. nxtheme files are legal and can be shared here. DO NOT SHARE THE SZS FILES.

How to share custom themes:
1) Make a theme like you normally would
2) Click "build nxtheme" instead of "patch and save"
3) Post the output nxtheme here.
That's it. As you can see the process has been totally reworked and this time it's much easier for end users.

How to install custom themes:
1) Download NXThemes installer on your switch (it's also available on the homebrew appstore)
2) Copy the nxtheme file in the themes folder on your sd
4) Install the theme and reboot

You may also find links like the ones below, those are Auto-Theme links, it's the old way of sharing themes, when you open them it will automatically download nxtheme files you can install.

Where can i find custom themes ?
You can look in the download center, in this thread and on this subreddit

So I'll be the first:

GBATemp theme: