c/p
To save user database

1 Insert usb stick
2 Go to Menu/Tools/Upgrade by USB
3 In Upgrade Mode scroll across to User Database
4 Push blue button and You will see "dump userdb" and a new file will be stored on the USB stick called user_database.udf

To install user database

1 Insert usb stick
2 Go to Menu/Tools/Upgrade by USB
3 In Upgrade Mode scroll across to Server Setting, file user_database.udf should show.
4 Scroll down and click start and wait for file to load.