it depends of your DS firmware version
if it is a ds lite you must need a passme2 or superpass 2 or passcard 2/3 and other recent linker
if it s a phat ds you must check wich firmware you have
and follow on of the tuto to flash your ds
but if you want to convert your passme1 in passme 2 there is some tuto for do this
search in tutorial