Last month, I purchased the Canada-West chart (SDVJNAM025MAP17) and successfully installed it on my TZT2 system by copying the file to the SD card. It worked great for a month or so, then a few days ago, I fired up the system and this chart was gone. I looked for it by name in the catalog and the file didn't show up.
I was able to fix the problem by putting the SD card in my laptop, deleting the file from the card, then recopying the file from a backup on my laptop to the card. Put the card back in the TZT2, fire up and the system, and all is well again.
I presume this means the file on the card managed to become corrupt somehow, and replacing the file with a good version fixed the corruption. My concern, therefore, is that I might have received a bad SD card from Furuno and I can therefore expect more such trouble in the future. There's a fair amount of guesswork in the above though, so I'm hoping someone else on this forum has experienced this same symptom and can provide guidance on how they solved it.
I was able to fix the problem by putting the SD card in my laptop, deleting the file from the card, then recopying the file from a backup on my laptop to the card. Put the card back in the TZT2, fire up and the system, and all is well again.
I presume this means the file on the card managed to become corrupt somehow, and replacing the file with a good version fixed the corruption. My concern, therefore, is that I might have received a bad SD card from Furuno and I can therefore expect more such trouble in the future. There's a fair amount of guesswork in the above though, so I'm hoping someone else on this forum has experienced this same symptom and can provide guidance on how they solved it.