Got this just now - haven't tried it yet, but it's straight from the horses mouth (Zenix) so it should work.


1. Press "STOP' button twice
2. Press number button in squence as "7","9","2","8"
and "0" to turn OFF
Marcovision protection off

or

3. Press number button in squence as "7","9","2","8"
and "1" to turn on
Marcovision protection ON