If you don’t have a microSD card in the device to back up your data, you will lose all the addresses you have entered into the unit’s Address Book.

1) tap on the MENU button on the map screen
2) tap on the middle SETTINGS icon
3) tap on the SYSTEM button
4) tap TWICE in the top LEFT corner of the System Settings screen
5) tap TWICE in the top RIGHT corner of the System Settings screen
6) tap ONCE in the top LEFT corner of the System Settings screen
7) tap ONCE in the top RIGHT corner of the System Settings screen

Voila…you are now in the secret menu.

Secret menu think? Please explain what you are talking about with that. I figured there must me some way to master reset the thing.