There is an error in the instructions provided in the User's Manual and
Quick Start Guide for the Coolpix S3000 and S4000. The information
contained in the manual and guide instruct the user to plug the UC-E6
USB cable into the camera first before plugging into the AC power
supply. This process will not switch the camera power on automatically.
Please follow the steps below in this order only * :
1 - Connect the USB cable UC-E6 to the Charging AC Adapter EH-68P.
2 - Plug the Charging AC Adapter into an electrical outlet.
3 - Be sure that the camera is turned off and then connect the USB cable UC-E6 to the camera.
When the green LED starts blinking slowly after a few seconds, charging has begun. When the LED goes off, charging is complete.
* If the charging light fails to come on at all, please sure to follow the steps
in the correct order detailed above. Connecting with the incorrect order may result in a "no led light" situation.