I have not been able to use the backup feature. I made a copy before resetting. Then when you do a full reset the watch defaults to automatically make a carved copy. It turns out that the first time you connect and synchronise, your working copy is overwritten and overwritten with a new "empty" version. If you disable auto backup right away, it might work, but I haven't experimented any more. I realised that Garmin does not check anything at the moment, it does everything in some way. Maybe I'm wrong. A copy in the course of operation can be overwritten, only it seemed useless to me.
