the Garmin 530 no longer detects the heart rate monitor, I changed the sensor battery, I changed the band, I searched for the sensor but it doesn't see it. however, my forrunner 735 xt on my wrist detects it immediately but gives the wrong heart rate values, when the set values are correct. curious thing: when I start the activity from the 735 my 530 detects the heart rate monitor! always with the values off as from the wrist one and as soon as I stop the activity on the 735, the 530 loses the heart rate signal. practically the 530 only sees the heart rate monitor if I have it detected by the 735 but both values are wrong. So I have 2 problems to solve.