With start up, earlier this week to do some pattern work (haven't flown in about a month), my 430W told me I had no Jepp data along with the error message "User Card Format Unknown". Everything was just dandy on my previous flight, so I thought maybe this was another way to tell me to update the data card. I went home and did the most recent update. No problem updating the card..............same error when installed in the 430W.
Has anyone else experienced this problem? Can good data cards go bad without warning? The 430W system has been in my panel for 5 years now and this is the orginal data card. The Garmin manual is not telling me anything.
Any suggestions would be most appreciated..........
Stan Schrek
N6395P in NJ