Items that support SD but not SDHC usually see half of the memory.
I am sure it's a software patch that is necessary and the card should be able to be seen.
I haven't bought one yet to see if the R4 will even recognize it like a lot of items.
I am trying to hack Fire Emblem Warriors on my 2DS XL, I have been trying to get it to work, but I need some extra help figuring it out. I have HEX codes, and a possibly outdated plugin, but I dont know how to implement them