I just bought a new Forerunner 955 and started using it for the last two days. HRM was working first and then for the last 24 hours the HRM is not working. I tried resetting the watch multiple times but no use. Still HRM is not working, with that SPo2 and Steps count also not working. I don't know what changed in between all of these stopped working. Help me fix this.
Below is my watch detail
