already tested with SD reader Sandisk Kingston tested with SD and USB No player 'm finding that nand this fire because it does not recognize .
The strange that he is with black screen
now I caught a sd reader samsung
hello friends I update my 3ds 4.2 to 9.2 and restart but got black screen have the backup of the nand made processes for hardmod but he does not recognize the nand on pc wires are soldered perfectly and nothing partition appear