I am asking for advice about the possibility of updating a 2001 Bluechart for Morgan City - Brownsville US014R used with my Garmin GPSmap 176C.
s it possible to update those old cards or it is better to buy a new bluechart wityh updated data?
Thank you in advance
I don’t have specific advise for your model of Garmin but the “card” isn’t anything special, just an SD memory card. However the data on it is and has to be a version compatible with the software in the Garmin itself.
Since your Garmin is likely 10 or 15 yrs old I doubt Garmin spends much time actively updating its software to stay in step with evolving versions of the Bluechart data. Tech had a pretty short shelf life
I think buying Bluechart data is in the several hundred dollar range and may be a problem getting functional on your device. I would suggest you contact Garmin directly to determine what if anything is possible.
You might be better served by looking at a new unit that would have a larger, higher resolution display, perhaps a device that could integrate with other devices etc.