HI, saw your posting on the downgrade post
I also have a japanese n3ds, how did you manage to proceed downgrade without that 000400102002CA11.cia?
i had two lucky times starting to install, but it stopped when it was looking for that cia
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi