several rides with wrong elevation data !!!
The downgrade works Perfect !! now i have an accurate device !! thanks !!
go to https://forums.garmin.com/beta-program/edge-530-830-1030-series/f/announcements/334458/xx30-series-new-betas---special-notes-in-post
download the firmare for your device
Download 1030 Plus - 6.…
Careful, I'm not aware of a public 9.79, at least in the USA. The most recent public version is 9.75, which is what I have.