Nikon coolpix 4600.

Hi I found this info on the Nikon Australia website:

"System Error" or "Lens Error" message in LCD monitor Question My COOLPIX camera displays a "System Error" or "Lens Error" message. What should I do? Answer Having a "System Error" or "Lens Error" message displayed on the camera's LCD monitor would generally indicate that your camera needs servicing. A System Error is a general error which can be caused by many things: lens problem, CF Card problem, general camera failure, etc. To troubleshoot, please try the following:

1. Use the memory card that originally came with your camera (or a Nikon approved card).
2. Remove and replace the battery.

On the other hand, a Lens Error generally means that an error has occured during the lens operation. To troubleshoot, please try the following:

1. Turn off the camera.
2. Remove and replace the battery.
3. Turn on the camera.

If the above tips do not help, your camera must be sent to our Nikon Authorised Service Centres, there are no user serviceable parts in our Nikon COOLPIX cameras. We apologize for any inconvenience caused and we will do everything to repair your Nikon camera as quickly as possible. Click Here for our Nikon Authorised Service Centres details.


Seems you may just have to remove and replace the battery - sort of like a Windows Restart to fix a computer problem! - this would reset your camera's memory.

Hope this helps.