I figured out how to upload my Mii from my 3DS in both person and QR form. Scan the QR code with your 3DS to get MY Mii in your system.
HiLite • November 14, 2011 • https://hilite.org/18169/news/matt-barnthouse-in-mii-and-qr-code-form/
Matt Barnthouse in Mii and QR Code Form