I just bought a new 3ds xl because my old one one finally died. the new one has already been cfw and running perfectly using a new sd card. I was wondering if I could use the old data from my old 3ds with all the save data. is there a way to boot using the old sd card when I used it it tried to instal the firmware but i wont but it keeps telling to push up down left right a after that after the install finish it tells me to do it over again. Please any answer.