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.

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Hardware Switch with NO SOUND??

Thread starter driftkingisback
Start date Jun 7, 2020
Views 3,657
Replies 3

driftkingisback

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Newcomer

Level 1

Jun 7, 2020

Hey, my switch has no sound in handheld, if i put on docking it just works fine and the sound comes out of the tv.

If i use my Switch in handheld it doesnt work the sound, comes nothing, in settings i checked all, the volume i checked ...also plugged in my headphones and doesnt come sound....

the switch works just with sound on the TV...maybe the soundboard?

the speakers i changed but it didnt work ...

gavin25

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Newcomer

Level 2

Aug 20, 2020

Hello, do you soloved this problem? i got a same question with you today.

Patapon3321

Well-Known Member

Newcomer

Level 7

Aug 21, 2020

Maybe the Video/audio ic have something, but im not sure

gavin25

Member

Newcomer

Level 2

Sep 13, 2020

i got the same problem with you , before my switch can't charge, i changed USBC port , m92t36 chip, and PI3USB, then it's normal work, but no sound in handheld mode (sometime had zi..zi.zi. a little sound), TV mode normal work, so i changed PI3USB chip today, but same no sound. had any good ideas?

and contor sound chip is ALC5639?? maybe we need change this chip? or check about this chip?

Last edited by gavin25, Sep 13, 2020