Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
I think that, if you got your directions from the right source, and have followed those directions accurately and scrupulously as to details, then you probably have only one problem (or perhaps two) left to consider and deal with:
1. perhaps your device has a problem? I hope not.
2. perhaps you got the wrong map from the wrong source? that's easy to look into first. So, where (from what online site or source) did you download the map for the Riviera area in France ?
And, what map exactly was it? map type, or file type, is important, and is what I am asking about here.
OK. I see the situation more clearly now.
I suggest that perhaps the connection between the computer and the Garmin device, might be imperfect.
Try a different USB port first of all, for the connection. USB ports ought to be all alike, but in practice they sometimes are quite different. When trying a different USB port, choose one as far from the first one as possible - it may be on different circuitry altogether, that way.
After that, try a different USB cable. A flaky or loose connection in even one 'Data' wire of the 4 wires in a USB cable, could cause the annoyingly slow connection you described... and could corrupt the data transfered also, making it unusable.
I think that it got onto the device.
Use the device as if it were a disk drive... use Computer to enter that 'disk drive'. Locate the offending, corrupted file, and select it there. Then delete it.
(If that's all possible.)
What device do you have exactly?
a 'Hero4' ? that's a camera.
Is it a Garmin device? or what? please clarify. Thanks.
As for the GoPro Hero4:
If your Garmin Edge is connected to a computer - with Windows (or not, but the same as this by different methods...) - then, use the computer's interface
(on a Windows computer, that's the
window, or the
Start - Computer
to go into the Garmin Edge and delete maps that way. ?
Otherwise, cumbersome methods using the Edge interface, I guess. Let me find them...
Actually, using the computer's interface to remove the map files is apparently quite usual for managing a Garmin device that needs new space for maps.
Please read what I said. Here it is again. You do not have to 'go to applications':
to go into the Garmin Edge and delete maps that way.
The Garmin device, once connected by a cable, should be a device with an icon in the
Desktop of the Mac.
Double-click on that icon to open it. There you are: access to all the files on the Garmin device.
The maps for US may be in a sub-folder. Click to open the folder, examine files listed in it, etc., I suggest.
Look at file sizes. Map files will be quite LARGE. They contain a lot of data.
Don't delete EXE files, nor INI files, nor CFG files. They're needed.