Macbook Air 2013 OSX 10.9.2 iSight Camera not working

Hello to everyone!

I have a problem here in my new macbook air 2013.

Since I updated my osx to 10.9.2 my iSight Camera is not working anymore. I tried to reset the SMC and PRAM without results. I also checked the permissions on my hard disk without any result.

I've also tried to delete my AppleCamera.plugin file from /Library/CoreMediaIO/Plug-Ins/DAL/ and I tried to use another one from OSX 10.8.4 but it's not working.

What can I do more?

Is there any way to fix this problem without formatting?

Regards,

Marco Alioli