• If you have not already done so, restart Mac and try again. Restarting may fix it.
• If the camera still does not work, verify that you do not have any login items that may be using your camera at every restart.
• If the camera still does not work, try all relevant suggestions from
http://support.apple.com/kb/HT2090
If you need to "reset", be certain that you use the correct procedure for your particular MacBook Pro version.
(Over time, Apple has changed the Macs' built-in cameras' names from "iSight" to "FaceTime" and then to "FaceTime HD." Regardless of the name of your Mac's built-in camera, the same info and troubleshooting applies.)
• If the camera still does not work, you may have a
hardware problem that will require a professional fix.
Unless you have a current backup, make one now.
Then use the final "Troubleshooting" suggestion:
"... contact Apple or an Apple-Authorized Service Provider for service."
• If you want to try one more thing on your own first,
use Disk Utility to repair permissions. Then
download and apply the latest Combo Update for
your OS. Currently, the latest ML Combo is here:
http://support.apple.com/kb/DL1640
Repair permissions again immediately following the system restart that completes the Combo update.
Properly applying the Combo version of updates can sometimes correct software problems, but, if your trouble is caused by a hardware problem, there are no user serviceable parts of the camera. For hardware help, contact an Apple-Authorized Service Provider for service.
Message was edited by: EZ Jim
Mac OSX 10.8.3