I just used the OOT method and launched GW 3.1.1 to do a nand dump but surprisingly the size is 1.84GB, which I believe is wrong? According to http://3dbrew.org/wiki/Flash_Filesystem it should be only 1.2GB?
Really should be 1240MBs as that is all the new3ds reads but gateway expands it to 1888MBs on some models for some unknown reason. My JPN n3ds has the correct smaller one while my US is the huge one. :/ http://3dbrew.org/wiki/Flash_Filesystem
well i have a 2 of the exact same 32GB cards (they are actualy 29.4GB though), and the one i use on the red card (with no emuNAND partition) is 29.4GB, and the one with an emuNAND partion is 27.4GB... so im going to say its exactly 2GB (but my emuNAND also has about 1 or 2 game patches, so it may be 1.8 or 1.9GB, but i think 2GB is acruate as the updates were only like 1050 blocks added together, and that doesnt seem like much) Whoops! forgot that game patches are stored on the non-emuNAND partition! so yeah, 2GB is right.
gateway dumps the whole emmc chip, some consoles have a 1.2gb chip, some have a 1.8gb chip, nintendo restricts the actual used space to that of the smallest size, so while 1.2gb is all that is needed, 1.8gb is in fact the actual nand size for some consoles