The unit I have has been tempremental since it was installed. Zenec themselves have never been over helpful and Navi extras have tried but all just refer queries to each other and Hymer themselves have thrown it back at Zenec.
But, I had an email from Zenec to advise Marquis now repair and can help with software.
I ended up talking to someone at Marquis Poole who at least told me how to get the radio working on the latest software, it worked and the radio is now stable, and is looking into moving the maps from the supplied 8gb card to a larger one, they can it seems sell you a new card, but all maps would have to be re-purchased, so a clone would seem better. There may be light.
But, I had an email from Zenec to advise Marquis now repair and can help with software.
I ended up talking to someone at Marquis Poole who at least told me how to get the radio working on the latest software, it worked and the radio is now stable, and is looking into moving the maps from the supplied 8gb card to a larger one, they can it seems sell you a new card, but all maps would have to be re-purchased, so a clone would seem better. There may be light.