Rom stuck on loading and memorycard corrupted

[fuzzball]

I tested the "Hello World" and it works fine in the Emulator (desmume-0.9.11-win32) but when i add the hello_world.nds file to the R4 flashcard in my DS, it get stuk on loading the application. Also after the first execution the white icon is replaced by a R4 icon, and my memory card gets corrupted. every .nds file i add to the card is corrupt. Previous rom files do still work though.

Is there an issue with running unsigned code, or does the memory card need to be formatted with a certain block size? Both seem unlikely to cause the issue.

i had the same issue installing an SNES emulator on my DS, which was also created with devkitpro. (http://www.snemul.com/ds/?paged=3)

Anyone else having this issue?

[WinterMute]

It looks like none of the old flashcard menus can boot recent code since we made more changes to support DSi.

Best thing to do is see if hbmenu works on your card.

https://github.com/devkitPro/nds-hb-menu/releases