it is the triforce and you draw a big triangle and a small upside down triangle in the center
I am sooooooo sorry. This is one of the two glitches in the game. You will have to keep drawing the Triforce (the symbol) tens of times until you get it to work. sorry :-(
you draw the Zelda symbol
The last symbol is the triforce
the triforce which is this thing
close you ds then open it, that sould do it.
There is two. One is a symbol of an hourglass, the other is a symbol of triforce
You must quickly do a "figure eight" symbol. Like This---> (8)
The sacred crest is the triforce symbol.
I think it was somewhere near a cave you probably know where it is the place where there is a door with a sun symbol on it where the arrow shooting game is
u have to draw the symbol of Zelda
U touch it
the triforce triangle is the symbol you have to draw on the slate/doors in the temple of the ocean king, the first time you draw on it you draw an hourglass, the second time you draw the triforce, see a picture of the triforce triangle here: http://upload.wikimedia.org/wikipedia/commons/thumb/8/86/Triforce.svg/512px-Triforce.svg.png
you tap on the hourglass symbol in the middle bottom of the screen then draw a hourglass in the middle of the screen without taking your stylus off. (you may have to try a few times before it works.)