Homebrew Is there a way to extract save files from SD card data?

eddymexico · 2026-06-25T05:32:42+0100

Hello everyone. I have a New3DS that refuses to write to the microSD card. I posted about this issue here, but I failed to find a fix.
I think I've lost the battle so I figured the only thing I could do is get my save files to transfer and use them somewhere else (another console, emulation) but since the console detects the microSD card as read-only, I can't just dump things to it from the console itself.
My questions is, are the save files present within the microSD files? or, is it possible to dump save files from the data present in it?
Thanks for reading.

Kwyjor · 2026-06-25T13:52:22+0100

You don't seriously think you're the first person with that question, do you?

Tutorial Hacking Thread 'Restore save data from dead 3DS/2DS'

Jan 28, 2022

I accidentally drop my 3DS and it died, so I bought I new one and tried to transfer all my old save data, but I discover that each console has an encryption layer that makes it difficult to transfer your data to a new console, so here I give you a summarized tutorial for recovering your old saves the way I did.

First it’s necessary that you have all your essentials system files backed up, specifically two files: boot9.bin and movable.sed. Without them, it’s impossible to pass the encryption layer of your old 3DS files.

If you still have access to your 3DS you can back up...

Be sure to read the first couple of posts in the thread.

Homebrew Is there a way to extract save files from SD card data?

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Tutorial Hacking Thread 'Restore save data from dead 3DS/2DS'

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