UPDATE -- SOLVED
I was unlucky, received a defect flashcard.
Got another one from the seller, works perfectly fine.
Hey there.
I've just got my new R4i Gold 3ds Plus (r4idsDOTcn) from 3ds-flashcard and I can't get it to work.
I downloaded kernel v1.64 from r4idsDOTcn and copied the "__rpg"...