I googled that they say that braindump will generate fake metadata(I think it is the header)So it will not work as I wanted to get the private header for my Sky3ds.
Can I dump my game card(genuine) using homebrew with GW.3dsx(Original sysnand 11.1.0-34U) then launch the gateway menu to dump the game card to the SD Card to get the private header for my Sky3ds+?