Over the years, our good friend Xtyler92 has created many unlocks. Most of them can be adapted to your device. You just have to ask how. Earlier Mio models cannot be seen by your computer so I'm adding a Mio Transfer hack that should help with that.
Enjoy!
PW: navitotal.com
http://www.mirrorcreator.com/files/0PJMHPU4/xtyler.rar_links