Doorbell wont work, Yellow light

After wiring up the base, I connect the camera and the doorbell rings (inside) and the camera just glows yellow for approx. 5 seconds, then shuts off. I have rewired the base a few times, reset the camera, and let it charge for an hour plus and nothing works.  

What does the yellow light mean? What does the small button next to the larger reset button do?  Ideas on how to get this thing to finally work?  Please help.