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...

Hacking Question Is it possible to backup my saved games safely?

Thread starter saito1234
Start date Aug 10, 2018
Views 17,582
Replies 24

Stone-D

Well-Known Member

Newcomer

Level 1

Aug 30, 2018

saito1234 said:
Stone-D, thanks for your guide!
If I use this HacDiskMount method can I use these saves that I back up on another Switch, which has the same fw version?

I'm guessing "yes". I can't see why it wouldn't work on the same firmware or moving from a lower to a higher. Test it before you actually need it.

godreborn

Welcome to the Machine

Member

Level 33

Aug 30, 2018

I take it that there's currently no official way to migrate saves to the micro sd card?

Stone-D

Well-Known Member

Newcomer

Level 1

Aug 30, 2018

godreborn said:
I take it that there's currently no official way to migrate saves to the micro sd card?

You mean force the Switch to save to the card instead of internal memory? No.

Reactions: godreborn

reinaldox_

Active Member

Newcomer

Level 2

Mar 24, 2019

did you find a way to transform the save datas to a checkpoint or edizon file compatible ? i tried using the script a user did but is not working with all my saves. says something about values out of range and offset.