To unlock mio 269 you don't need anything but the stylus.
Just push the resetbutton with the stylus .
than quickly push the volume button up all the way,( the one on the left side above the ON/OFF button)
simultanius with the the button on the right side the second from the top (the one with the flag on it).
And waite a few seconds there will be a little screen saying" clean all data ...