Facetime Isight Green Webcam light flashing/blinking and black view suddenly

I'm reopening this thread because I see I lot of people with this problem and no solution, as many of you I tried SMC restore, safe mode, test user and apple diagnosis with the apple care suport.

After none of this steps work, I found in my country forums that the problem is a bad connection with the camera cable. So a shaked my MacBook and it back works, lol.

I will leave it for assistance to reconnect the cable well son as possible :P

But I'm writing just for you guys to try to reconnect the cable before change or buy any piece.

Sorry about my bad English and hope it works for you too.