To open the console, unscrew all four screws on the console bottom, extract the electronic board.
- Power on the electronic board and plug the power supply
- Wear Heart Belt
- Find resistor on the board ( it is looks like a screw) follow the red arrow
- Using an screwdriver you have to rotate the screw with small step until red led starts to blink ( Maximum rotation is of an half turn (clockwise and anticlockwise ).
- Try to use software to check the correct Heart Rate value
- Assembly again console with screws