Posted 3/25/2019 16:38 (#7400884 - in reply to #7127030) Subject: RE: Garmin hand held GPS issues.
Saginaw Bay Area - Michigan
Sounds like the backup batteries are shot, so the units are resetting to factory defaults when they are powered off or when the batteries are being changed. See similar behavior with similar vintage Garmin 60cx units (same model, just no walkie talkie).