Help with a Arlo video doorbell installation will be greatly appreciated. Swapped out a older 12 volt transformer for a newer higher volt transformer. The voltage at the doorbell is 20 volts. Installed the part on the wired chime per the instructions. When I touch the wires on the outside of the door together the wired chime sounds appropriately. I attach the wires to the rear of the video doorbell and press it into place. I follow the installation instructions but I do not get a solid circle of white lights around the button. I do not know what I’ve done wrong? Any suggestions will be greatly appreciated. Thanks everyone.