Fired up my Garmin 740s yesterday (loaded with a G2 vision card) while starting out on the water, only to find the chart was showing all sorts of weird stuff (cross-hatched lines, land where there was water, etc.). It finally dawned on me when I removed the card and the display looked normal, that data on the card was corrupted. Worked fine one day, corrupted the next. The 740s spent the time in between in my electronics box as always. Where should I look for the gremlin, or should I always carry a backup copy of the card? Anybody got ideas??
Fired up my Garmin 740s yesterday (loaded with a G2 vision card) while starting out on the water, only to find the chart was showing all sorts of weird stuff (cross-hatched lines, land where there was water, etc.). It finally dawned on me when I removed the card and the display looked normal, that data on the card was corrupted. Worked fine one day, corrupted the next. The 740s spent the time in between in my electronics box as always. Where should I look for the gremlin, or should I always carry a backup copy of the card? Anybody got ideas??
It's a little late to make a backup card now but it doesn't matter. Only an original G2Vision card will work in a plotter. Copies work fine with HomePort on a computer but not in a plotter.
Contact the vendor you bought the card from or Garmin tech support to see about a replacement card.
Getting a replacement card is not a problem because I download them from the MyGarmin website. My question is: is suddenly finding a corrupted card a widespread problem (in which case having a replacement card handy is a good idea) or is this incident just a rare gremlin of unknown source.
Getting a replacement card is not a problem because I download them from the MyGarmin website. My question is: is suddenly finding a corrupted card a widespread problem (in which case having a replacement card handy is a good idea) or is this incident just a rare gremlin of unknown source.
You can just download as many G2Vision cards as you want? For free?
Yes, once you buy one, you can download more for a year, I think, or until an update is made available. But. they are only usable on the specific registered unit you bought it for. If someone else understands it differently, please chime in. But that is the way it has worked for me.
