Edge 540 Calculation of ascent and slope slow and incorrect

3216848
14 days ago

After updating to version 28.10 and 28.11, the calculation of ascent and slope is incorrect. Noticed that on small climbs despite the change in altimetry and % positive slope, the ascent value does not change. At the end of the lap the gap to the correct ascent is around - 10/15%.

  • 0 13 days ago

    This has been happening on my 540 as well even in 27.14. Grade and total ascent has been WAY off. I thought my ConnectIQ data field was the issue but switching to the stock grade % data field is showing everything incorrectly. Flats are registering as -% and climbs are showing as 0. 

    Correcting elevation in Strava like doubles the total ascent. Previously the difference was negligible. Please fix this bug.

  • 0 2 days ago

    Today I did a ride that I had done about a month ago. Both using my Edge 540 Solar. Same software version (27.14).  Same 43.3 mile out and back course. Today’s total ascent was 1985 feet. A month ago it was 1601 feet.