about sd slot in nintendo dsi(not for r4,acecard slot) in the side of ndsi

pls can someone help me about the other sd slots in the side of the ndsi. my dsi is japanese version so i cant read. when i put my sd card when im in the sd settings in the camera. my sd is not accepted. i've research about it i found out the other people also having a hard time in this problem. the sd card cannot be used/the sd card is not recognized/the sd card is locked. pls help me

we need to move this dude's threads to technical help.

Well, format the SD card to fat32 or fat. DSi can only support up to 2GB SD card.

my sd card is 8gb. but i also tried 2g micro sd inserted in his adaptor but still same problem. T_T