Posts: 2323
Location: Stevens Point, WI | The latest 4.0 update will provide you all the updates up to this point.
Now, if your HDS unit is from January-June 2009 and your running .5, 1.5 or 2.0, you will need the Navionics update for early production units. If your not reading Navionics or any kind of chip, you will need this update, if you are reading a Navionics chip, you will not need this update.
Here is the link to that update.
http://www.lowrance.com/en/Downloads/Product-Software-Updates/HDS-N...
The 4.0 update can be found here:
http://www.lowrance.com/en/Downloads/Product-Software-Updates/HDS-S... |