I have a dstwo card, that i get an error screen when i try to just boot from the 3ds main screen(it works on my old NDS) i have firmware 11.3 so i presume somethings up and it's been blocked, When i try to add game with it thru TWloader it just goes black, I've follow the instructions but i just can't get it to work, Im presuming it's because the card wont boot anymore normally. Using Luma etc
EDIT :- Even trying to boot from SD card i get a black screen on known good roms (super mario 64 DS) I've looked at the black screen fix thing in Luma and i have no SVCbreak , Not really sure what to do now!