After updating my vívoactive 5 to Beta 17.05, the entire sensor system stopped functioning. The heart rate widget shows “--”, the green LED is very dim and slow‑blinking, and sleep, stress, and Body Battery all show no data. Pulse Ox also does not start. I have already tried the following without success:
- Full shutdown and power‑off for 10+ minutes
- Hard reset (holding the button through the Garmin logo for 30 seconds)
- Factory reset
- Toggling the wrist heart rate sensor
Device details: • Sensor Version: 35.10 • Firmware: Beta 17.05
Please advise on next steps.