I bought my Edge 530 3 years ago. I've used it continuously since without any problems. I recently had to change the batteries in both my heart rate monitor and my cadence monitor. Now, neither sensor will pair. I deleted the heart rate monitor and then tried to re-add it, and it will not sync/pair. Under add sensors, I've checked the box for the heart rate monitor and the spiral of death at the top of the device just continues to spiral without any indication that it has been recognized. Any help would be appreciated.