My one year old Garmin 545s GPS fishfinder, chart plotter has begun freezing up after 1-2 minutes of use. The screen image does not change and I can't turn of unit off without disconnecting the wiring harness from the unit. Is there a fix without returning the unit to a Garmin customer support center?
Upgrading the system software of your GPSMAP 545s will most likely fix your freezing up problem.
I hope that helps.
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