Hardware Bought a n3DS FW9.0 - Bought a 64GB SDXC, why it doesn't work?

[DJPlayer]

Hey Guys,
I just bought a n3DS with the Firmware 9.0.0-20E and a MicroSD-XC Card with 64GB.
I saw that we're able to use this MicroSDXC on the n3DS, i formatted it to FAT32 with GUIFormatter and followed this tutorial:
after formatting I tried to insert it into the n3DS but I always get a error message that the 3DS is not able to read the SD Card.
I've the same MicroSDXC which was showed in the Video:

Spoiler

 

[WhoAmI?]

http://lofi-gaming.org.uk/blog/2013...-upgrade-your-3ds-sd-card-to-64gb-and-beyond/

 

[KazoWAR]

have you verified that it is infact in FAT32?

 

[gbatempnoob]

have you verified that it is infact in FAT32?

this. i originally had problems as my microsd for some reason was not in FAT32 format.

 

[DJPlayer]

Already fixed it. Had my SD card as Logical instead of Primary