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.

duckstation for Switch

catlover007 · 2024-04-22T04:06:40+00:00

duckstation is an excellent Playstation 1 emulator by Stenzek. It has a very good compabiility and it is quite performant. It also supports all kinds of enhancements such as high resolution rendering and PGXP which can lessen the "wobble" and...

Can anyone guide me in refreshing start to reinstall cfw on my switch?

Thread starter leosel
Start date Jan 9, 2022
Views 1,510
Replies 3

leosel

Well-Known Member

Newcomer

Level 7

Jan 9, 2022

Can anyone guide me in refreshing start to reinstall cfw on my switch, I have a sd card in exfat, but i think it is a fake brand, I already have a genuine 128gb, but I wanted to be in FAT32, how will I do it? Please help me...

CompSciOrBust

🤔

Member

Level 11

Jan 9, 2022

This guide was written for formatting an SD Cards for the 3ds but it's the same process for the Switch.

For reinstalling CFW you can copy all your files over from the old SD Card or if you want to start fresh follow this guide. https://nh-server.github.io/switch-guide/user_guide/rcm/

leosel

Well-Known Member

Newcomer

Level 7

Jan 9, 2022

Thank you for the guide, but for the start I would like to remove the CFW of my switch, how I may do that, in order for me to the fresh start?

Draxzelex

Well-Known Member

Member

Level 23

Jan 22, 2022

leosel said:
Thank you for the guide, but for the start I would like to remove the CFW of my switch, how I may do that, in order for me to the fresh start?

Try asking in the Switch Noobs Paradise instead.