I used this guide here to update my Pioneer X930BT

http://avic411.com/index.php?/topic/35280-upgrading-a-x920x930-to-x940-instructions/

However after I've updated, the radio itself works fine and GPS functions as well though not as well.  I can't seem to get voice navigation working properly.  For the most part it says "Due to limited data, guidance cannot be provided in this area."

Help?

There's no help here ? A heave an Avic F700BT. version 3.000.300 and i can'hear any voice from navigation guidance. I need help please.  Thanks.