Chosen Solution
My cameras are completely black and my flash light doesn’t work
Most often this occurs due to a bad camera, particularly the rear camera. The flashlight often doesn’t work when cameras are not functioning properly because the enable signal for the flashlight is transmitted via the camera. If the camera isn’t working, no signal. I would have a look at the iPhone Camera Black Screen page and see if anything there helps. But my money is on a bunk rear camera.
