Bug1: Unreasonable (extremely) low training effect
Avg HR=142, Max HR=174, IF=0.887, TSS=81.1; Aerobic TE=0.3, Anaerobic TE=0.0, Load=3. (A similar course with a similar HR and TSS usually result in Aerobic TE=3.5~4.5, anaerobic TE=1.5~2.5)
What I've done: Start the computer, warm up myself, start a stress score measurement without stopping the record, do the course.
Bug2: All the sensors dropout
The second day after bug1, all the sensors dropped out including HRM, PM and speed sensor. They were connected via ant+ before.
Bug3: Cannot turn off edge 830 after dropout
I turned 830 off via the power button and choosing “Power Off”, resulting in a power logo on the screen but the unit could never turn off. I did this after the ride where all the sensors dropped out. Then I hold the power button for 15~20 seconds to shut down the unit.
https://forums.garmin.com/sports-fitness/cycling/f/edge-830/165761/turning-off
Posted two months ago, exactly the same bug, but it has not been fixed til now.