Quote Originally Posted by Glenn54 View Post
Rickie, are there any disadvantages to upgrading the software on a HDS GEN 2? I thought I read something about losing depth or contour lines??
There are always random gremlin possibilities when updating any unit ...

The good thing is there is also plenty of help in the forums to tackle those possible gremlins ...

The issue in the link below for gen3 may be the iota you have heard of ...
Lowrance Gen 3 telling me that my Navionics is expired!?

Rickie