I've had my 757c since 2008 and it has worked great. Hit the lake two weeks ago and the GPS isn't working. I dismounted it, made sure all the connections were clean, made sure everything was tight, but it's still not working. Nothing has really changed. When I run the test it says not connected. Trying to figure out if it the unit or the GPS puck.
Do the GPS pucks fail? There really isn't a lot to them so I'm not sure what could have changed.
Any advice other than sending it in?