Overview. My Garmin HRM-Dual would initially connect but would not show a HR (heart rate). After reading about this on the Garmin web site a sensor can have a software/firmware update. I proceeded to connect this HRM-Dual to my Garmin Fenix 6 and went on a hour long dog walk. Upon returning and saving the walk, a notification flash on the watch face indicated a sensor update. After about four minutes the update was complete, and I now get a heartbeat on the iPad Zwift app. YES!
To read the four-step process just search: Installing the Latest Garmin HRM-Dual Software to Your Sensor.
Hi @Matthew_Fowler1 welcome to Zwift Forums! I’m happy to read that after updating the firmware of your Garmin HRM-Dual it’s transmitting data to the Zwift game on your iPad, I want to show you my appreciation for the time invested in getting this resolved and sharing with us, your commitment is much appreciated!
Please make sure not to log into multiple devices with the same account at the same. If you need help with anything else, do not hesitate to contact us at support@zwift.com! Ride On.