I have recently come home from a trip to Nepal and India. In Nepal
I trekked 25 days in the Annapurnas and always had my Garmin 60CSx
on to record a full trace for later use.
Occasionally I checked my traces in the GPS, and they were all there,
one for each day. Later I traveled in India for 2 months and only used
the GPS once in a while, in cities and such, to find my way back home.
Once back at home I attempted to download traces and waypoints. But
Mapsource says it can not find any data card to download from. When
I try to load maps onto the GPS I get a similar message, no data card found.
Other programs, like Oziexplorer fail as well.
I had the GPS set up to store traces to the data card,and to wrap when full.
It was a Transflash 512 MB card. IIRC I removed all maps from the card
before leaving on that trip so as to make space for the traces. Only the
original basemap, was there.
At no time during the trip did I remove the card. It was well in its slot and
properly locked.
I have tried reading it through a separate card reader, but that fails as well.
When replacing the card with the original 64 MB card all works well. So it seems
the 512MB Transflash has somehow gone bad.
Such a card does not cost much anymore. I am not overly concerned with
the cost of a new one, and it may even be replaced on its warranty. But I
really miss the traces that I took so much pains to record, and spent a bunch
of batteries on.
My suspicion is that that the card became full with traces and then croaked.
All in all I had it running abt 150 hrs during the trek, and then maybe another
50 hrs while in India.
I have polished the cards contacts lightly with a cotton cloth, but to no avail.
Any suggestions much appreciated.