I can’t edit my activities, the ‘Save’ Button is missing. This has only just started happening, since I have been using a Garmin 530. my 810 allowed edits.
Where are you trying to edit/save these activities? Garmin Connect? From the Xert activity dashboard? If you’re looking to edit your fitness signature parameters for an activity, you’ll need to go to ‘Advanced MPA’ to do so. HTH