Troubleshooting for ST hrm SMART
Problem: Heart Rate Monitor is not found, connection is lost or heart rate is replaced with "--"
- For some reason, the iPhone is having difficulties with keeping up the Bluetooth connection. Restart the Bluetooth manager by going to phone's settings and switching the Bluetooth off and back on after few seconds.
- If resetting Bluetooth doesn't help, restart the iPhone by holding the power button for three seconds and selecting Power off. Also detach the Heart Rate Monitor from the strap for 30 seconds before wearing it again.