Did you try to power it up without the linker inside?
If yes, and still no luck, try removing its battery and leave it like that for ~10 minutes. Then try again.
EDIT: at least reply if you fixed it. I know you were here at the time i posted this.
I actually like this, it gives you a great feel of next-gen console.
BUT! Battery, battery is the question now!
Its not like it's going to share personal info or photos. And i think not even the hardest pedophile can fap to Mii icon