Others NSMB2 crash on startup

elwey0so · 2026-09-24T20:18:09+0100

Hi, just wanted to ask if this crash has a solution? Every time I boot up NSMB2 it crashes on startup with this error code: https://imgur.com/a/IzrvXw9

SD card isn't damaged or faulty it started out of nowhere and the 3ds is homebrewed.

Kwyjor · 2026-09-24T20:29:35+0100

elwey0so said:
SD card isn't damaged or faulty it started out of nowhere

Well, SD cards can get damaged or faulty out of nowhere.

Are you running this game off the SD card, or do you have a cartridge? Did you install any updates or start using any plugins?

NSMB2 is known to cause a very specific bug, but not quite like this. https://github.com/LumaTeam/Luma3DS/issues/1559

elwey0so · 2026-09-25T02:32:01+0100

Kwyjor said:
Well, SD cards can get damaged or faulty out of nowhere.

Are you running this game off the SD card, or do you have a cartridge? Did you install any updates or start using any plugins?

NSMB2 is known to cause a very specific bug, but not quite like this. https://github.com/LumaTeam/Luma3DS/issues/1559

Thanks for the reply, I'm running it off the SD. I didn't update neither used any plugins, that's what confuses me the most.

Kwyjor · 2026-09-25T04:26:29+0100

elwey0so said:
I'm running it off the SD.

Then you should do the usual SD card checks. You can't otherwise be sure your SD card really isn't damaged or faulty.

Copy everything off your SD card (Roadkil's Unstoppable Copier is recommended when there's a possibility of corruption), format the card, test the empty card with h2testw, and copy everything back again. If the test fails or if you can't format the card, then you should get a new card (and copy everything to the new card after formatting and testing it). Sometimes copying everything back again is enough to fix problems.

Others NSMB2 crash on startup

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