no it says on system settings 4.4 still and 6.3 on gw mode,i think you screwed up and updated realnand
no it says on system settings 4.4 still and 6.3 on gw mode,
apparently the conector from the blue card became wobbly/loose, and that made it difficult for the 3ds to recognize it, as for the dstwo it runs everytime on my regular ds, however it is readable only if you dont fully push the card all the way down on the 3ds.
im afraid the defective card might have damaged the reader on the 3ds.