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...

Switch OLED SD card problem

Thread starter Ernestino
Start date Mar 11, 2024
Views 423
Replies 1
Likes 1

Ernestino

Member

Newcomer

Level 3

Mar 11, 2024

I got Switch OLED with bad DAT0 connection for repair. I reballed EMMC and it boots normal to no SD card screen without sd card inserted.
If I insert SD card I get this error:
hekate exception occurred CLR
4898ETD8) :
Hang detected in LPO/Minerva!
Press any key...

I notices short on 100nF capacitor near SD module connector. Removed capacitor, short is still there.
Unfortunately only schematics I could find is from different board version ( this one is HEG-CPU-10).
Can anybody help me with diode readings from working console on both pads of this capacitor.

Last edited by Ernestino, Mar 11, 2024

Reactions: Qwasi

thesjaakspoiler

Well-Known Member

Member

Level 8

Mar 12, 2024

The short might be somewhere else on the board.
Unfortunately I also don't have board schematics for this model.

Maybe ask in the picofly thread :
https://gbatemp.net/threads/picofly-a-hwfly-switch-modchip.622701/

All the experts are there and these guys also do a lot of repairs.
Just mention that you got a messed up picofly installation from a client but are still struggling to fix this short.

Reactions: Qwasi and BigOnYa