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...

Wifi IC Firmware?

Mr. Sparkle

Well-Known Member

Newcomer

Level 2

Feb 4, 2021

Hi everyone! I have a technical question for the group.

I run a small repair service in the US repairing video game consoles and household electronics. I recently reballed a WiFi IC on a patched switch that was stuck at the boot logo. The reball was a success (I also had to replace the LCD screen FPC while I was at it) and the console booted once the chip was reinstalled and wifi worked. After a few days of testing the chip has failed again and I am thinking the chip is faulty.

I have heard reports from other technicians that despite the fact that new chips are available from the manufacturer, the new chips do not work when installed on a switch. The theory is that there is a firmware that needs to be written to the chip in order for the chip to function with the switch. Only pulled chips from scrap boards have worked to repair a bad wifi IC.

No one that I have communicated with about this issue has any knowledge of how to write firmware to the chip or dump firmware from the chip.

My question for this group is this: is there a means today to dump existing firmware from the wifi IC using homebrew or some sort of USB connection to a PC? And if so, would there be a means to flash new chips using a PC or hacked switch?

Hardware Wifi IC Firmware?

Well-Known Member

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