My camera is not working, it just shows a black screen when I turn it on. Snapchat and instagram cameras aren't working as well. In the restrictions the camera app was not restricted and still it's not working. Can anyone help me out?
If the affected apps have permission to use the camera, try to force the iPhone to restart: hold down the Home Button and the Power Button at the same time until you see the Apple logo (about 10 seconds).
You could try to reset your iphone and restore it from a backup or you could go to the store to see if they can do anything. It seems as if your Camera might be broken. If you have any insurance plan like apple care, they should probably replace your phone for you.