i had same problem...
the card was working on windows but not with arduino....(card was OLD)
i pulled my micrsd card from my cellphone and it worked pretty good...
make sure the sd card is new or recent model
i had same problem...
the card was working on windows but not with arduino....(card was OLD)
i pulled my micrsd card from my cellphone and it worked pretty good...
make sure the sd card is new or recent model