you will need to read and learn first try looking here h**p://navmanunlocked.forumwise.com/forum.html this site is very good will help you mod your navman
:Clap:Handy link cheers I have been looking for informaion to update my old nav man that has version 2 software,but if I can convert it to Tom Tom software even beter.
et an sd card with tom tom on it and follow the instructions that will come with it.
easy peasey takes 1 minute to set up and works fine.
been using tomtom on my 570 for a few months now and works a treat.