My camera flashed blue and white. Took camera down and brought it in the room with the wifi.  Checked batteries contact.  I choose to install new camera.  Followed directions and placed batteries in and got the blue/white light.  Waited until they stop flashing, then hit the button on top and held for about two to five seconds and the white only light came on and completed the programming.  Camera up dated and all set.  The information went back to the orginal camera and did not add a new one.