Was just a thought because I had issues with the app so deleted it & used the download. Not sure if the app is still available.
No longer available.
Was just a thought because I had issues with the app so deleted it & used the download. Not sure if the app is still available.
Have you tried a hard reset on the device after saving your routes & favourites? Then reformat the card again & empty the trash. Reinstall maps to device & computer? Using a data USB lead?
I'd then take the old card, clean / wipe it properly and keep it safe for next time.

If a factory fresh card cures the problem I'd place the offending card on the floor, take a hammer from my toolbox and.......![]()
Me? I'd just put a fresh news SD card into the device and see if that worked. If it did, I'd be happy. Then, when the map update was complete, I'd transfer all the music over to the new card. Actually, I wouldn't as I don't do noise / sound / voice when riding but each to their own.
I'd then take the old card, clean / wipe it properly and keep it safe for next time.
I'll have a go with hard reset tonight. Straight forward to copy off favourites I assume ? I think base camp does that from memory
A couple of questions and maybe suggestions. have you updated the maps on the mac and are they installed on it,check this, can you use them do they work in base camp. have you transfered them to the card and are they there, check this. if you can see the maps on the mac and can actually use them on the mac i would presume the download to the mac was ok, check that the maps are actually on the card you should have a large image file of around 4gb or bigger, if the update is on the card you may have a problem with the card or the unit. if not try to install it using a card reader and have the software set the card in the reader as destination for the update. also ensure you have the correct usb lead there are different types, you can have a lead that just charges or a lead that does not charge but will send and recieve data, and a lead that will do both.
The fact that you can actually play your music files off the card, would seem to prove your unit is indeed seeing the card, but not seeing the map, now i am not familiar with mac stuff so some one may have to confirm this, on your sd card there should be a folder called garmin and in this should be a file called gmapsup1.image and another called gmapsup1.unl they are the two you need for the map to work, there may also be in that folder another folder called gpx and maybe one called jvc. can you confirm this.