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...

Unpatched Switch Not Going Into Recovery Mode

Thread starter Ultraxfo
Start date Mar 8, 2023
Views 2,549
Replies 22

Hayato213

Newcomer

Member

Level 28

Mar 9, 2023

User154 said:
Out of interest is that true for all patched switches? I've never been able to find a definitive answer.

There's lots of posts on various sites referencing patched switches being in rcm mode for one reason or another, but then there seems to be lots of people that say patches switches cannot enter rcm.

Yes patched unit can enter rcm mode, but can't inject payload.

User154

Well-Known Member

Member

Level 8

Mar 9, 2023

alivingpeanut said:
any switch can enter rcm, it's an intentional feature

Presumably Nintendo have a legitimate use for it when repairing them. Thats what I thought when I first heard about rcm anyway, but then so many people say patched switches can't enter rcm I wasn't sure.

halfashark

Well-Known Member

Newcomer

Level 3

Mar 9, 2023

The complete lack of response from me asking for them to go into the system settings and check the serial and then others asking the same leads me to believe that it's a refurbished switch of somesort OR

They realized they were using the jig wrong and it's now working and they just don't feel the need to update us.

Reactions: Animage55, User154 and Zephir1991