I have an old 3ds xl, the system had emunand, i took out the SD card and formatted in fat32, then copied all the luma and other files to flash it, now the 3ds doesn't boot, blue light turn on like 1 second and the turn off. how can i solve this?

Try redoing Luma3DS and setting up the EmuNAND.I have an old 3ds xl, the system had emunand, i took out the SD card and formatted in fat32, then copied all the luma and other files to flash it, now the 3ds doesn't boot, blue light turn on like 1 second and the turn off. how can i solve this?
i saved the luma files to SD card but the 3ds doesn't start, just blue light blinks once when i press the power buttonTry redoing Luma3DS and setting up the EmuNAND.

i didn't have a backup, i'm screwed?i saved the luma files to SD card but the 3ds doesn't start, just blue light blinks once when i press the power button

Okayi didn't have a backup, i'm screwed?
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thanks to the nintendo homebrew discord i was able to fix it, the solution was https://3ds.hacks.guide/a9lh-to-b9s.html