Q: My MacBook Air 2nd h 2011 running Mac OS X ver 10.7.5, camera disappeared. FaceTime. Photo Booth, iChat, Skype can't find it. It isnt in System Report, in USB High-Speed tree. I've browsed discussions found no solution.Pls help me

JLeme wrote: ... camera ... isnt in System Report, in USB High-Speed tree...

If you have tried every relevant suggestion from How to Troubleshoot iSight but your camera is still not recognized anywhere in your System Profiler's USB Device Tree, you likely have a hardware problem.

Properly applying the Combo version of the latest update for your Mac OS 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 Apple or an Apple-Authorized Service Provider for service on your MacBook Air.