C80 Chartplotter slow down

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum wcletien,

The reported problem is resulting from the significantly greater amount of cartography stored programmed onto currently sold Navionics chart cards than was programmed onto Navionics chart cards which had been sold during the period when the C-Series Classic MFDs had been sold. If using a Navionics+ chart card, it is recommended that the amount of nautical charts stored on the chart card be reduced to no more 2GB of data.

Regarding the software update to your MFD, please click here to view a FAQ addressing this subject, including where one may obtain a memory card which has been populated with the latest software update files for one's product.