Does anyone here know how to do this? I had 4.50 on it before and update it to 5.50 and lost my dual frequency sonar. Garmin rep said the 430s was not 'optimized' for this even though it came with the dual freq and dual beam transducer.
Just trying to update it with the <5.50 firmware will do nothing. Any help would be appreciated
Hi, I cannot figure out how to start a new thread so sorry if this is in the wrong place. I have a GPSMAP 430sx and cannot get it to power on when connected to the USB on my computer. I want to download the waypoints to my computer and upload others from mapsource. am I doing something wrong or do I need a different cable to connect to my computer? thanks