Try reformatting using http://www.r4i-sdhc.com/upfile/Panasonic SDFormatter.rar
Then,
Extract this to the root of your carts sd card.
Also put this nds file into the root of sd card.
Then continue https://3ds.guide/flashing-ntrboot-(3ds-single-system)
Then,
Extract this to the root of your carts sd card.
Also put this nds file into the root of sd card.
Then continue https://3ds.guide/flashing-ntrboot-(3ds-single-system)
Last edited by AlexanderLS,
, Reason: I wish I could delete posts. I need to stop posting especially late at night.