Hi I am having a similar question as I am looking to buy a japanese 2DS XL. So to confirm, the region changing process does or does not affect the NNID? If it does affect it, is there a way to prevent that? An alternate method or something? Also if i want to make a new nintendo network if after...
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