Green light on simplicam

@tshearer206​ as a previous user notes, there is no green indicator. But it could be yellow. A flashing yellow means that your camera is having trouble reaching our Monitoring Service. Please refer to our Help Center for info on troubleshooting.

Or it could be a flashing blue, meaning that your camera is currently sending data to the service (e.g. if someone is on the app and is streaming).

I’m installing the doorbell. I also have a green light for 5-7 seconds then it turns off. I’ve replaced it twice (3 cameras). 

@Jmwatson ​ I would not recommend powering the device via the USB port. It is for servicing only, and isn't intended for charging. It does, however, allow you to power on the device temporarily to check that it's operational.

Regarding the original post, they could have been seeing a yellow light, which might appear to some as a bit green-ish. That means the unit is having trouble reaching the Monitoring Service through your home's WiFi (though it is still connected to the WiFi router itself). 

To be clear, resetting the device might actually help with that. But you don't need to plug the camera into USB. There should be enough internal battery power to reset just by pressing the button.

Where is the Rest Set Button, do you have a picture and do I need to disconnect it to reach this button?

I guess I'm having the same problem  The base is wired.  When I place the camera part on the base, the door bell chimes and the light around the door bell button is GREEN.  The green button goes off and comes on every 30 seconds then goes off again.  That's all I can get the doorbell to do.  There's no white flashing light or any other light besides the green.  When I press the door bell button, nothing happens.  (The only time the doorbell chimes is when I first connect the camera part to the base). I have pressed the reset buttons, with no luck.  There's no beep or voice when I do the reset.  If I plug a USB charger plug into the back, nothing happens.   When I use the app to set it up, I get to the part where it asks if there's a fast flashing white light.  Since there's no white flashing light, that's as far as I can get.    I called Simplisafe and the tech was clueless..  Any help would be appreciated!!  The door bell works fine if I take the simplisafe door bell camera off and re-install the old school door bell push button.