Garmin 810 won't pair with HRM's
Replaced my old 800 with an 810 but it just will not find either my old Premium HRM or the new one with the fatter strap. It finds my speed and cadence sensors (new versions) and my Vector PM. I've tried a new battery and I've tried flipping the battery to reverse polarity then flip it back again and I've done two factory resets. No deal.