First post!
I have a US version of Pokémon White and a Japanese DSi with Unlaunch and Twilight Menu. The cartridge runs in DS mode on the DSi, but runs in DSi mode on amy US 3DS with CFW. This is because the DSi mode region lock I assume...?
Is there a way to force the JP DSi to run the US...
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