Why is the blue light flashing on the Scan2 after connecting to Rufus Cuff/Rufus Cuff Pro?

A blue flashing light on the Scan2 indicates the scanner is still searching for a bluetooth connection

If the Scan2 has a blue flashing light after attempting to connect to the Rufus Cuff Pro, re-attempt bluetooth connection. Attempt pairing in HID mode first to remedy the blue light flashing and achieve proper pairing.