I use the same device as you, I usually use Garmin BaseCamp to upload and organised all my gpx files, which then get send to the device.
Do you also have Garmin Express?
I haven't used Garmin Express - I just took a look at it and will download it. I was just doing the manual file transfer via USB to upload the files before. Still doesn't make sense to me... I'll do a factory reset too
Your map and OS may not be updated, Garmin Express is an app that basically update the software.
@MitzEclipse started
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I use the same device as you, I usually use Garmin BaseCamp to upload and organised all my gpx files, which then get send to the device.
Do you also have Garmin Express?