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...

Help! A fatal error occurred when running Fusee. Package3 seems corrupted.

Thread starter morrison22
Start date Nov 28, 2021
Views 8,410
Replies 4

morrison22

Well-Known Member

Member

Level 9

Nov 28, 2021

"A fatal error occurred when running Fusee. Package3 seems corrupted."

This is the message I get when launching Atmosphere for the first time after migrating from SXOS using the rentry guide. How do I fix this?
Firmware 11.0, Launch Edition Switch

Please help, and thank you!

morrison22

Well-Known Member

Member

Level 9

Nov 28, 2021

Someone suggested I use Hekate instead of Fusee. How do I do this? Is this what I should do?

Edit: This worked. Thank you.

Last edited by morrison22, Nov 28, 2021

Reactions: zxr750j

Max76_AUT

Member

Newcomer

Level 1

Feb 7, 2022

Hi, i also migrated from SXOS to Atmosphere and get the same message but i don‘t understand the answer here what to do now.

Draxzelex

Well-Known Member

Member

Level 23

Feb 18, 2022

Max76_AUT said:
Hi, i also migrated from SXOS to Atmosphere and get the same message but i don‘t understand the answer here what to do now.

Did you download the latest Atmosphere?

Max76_AUT

Member

Newcomer

Level 1

Feb 20, 2022

Hi, i started from the beginning. Formatted SD card and installed Atmosphere. Works fine now. Would be the better choice than migrating from SXOS as these tutorials often are bad.