Chosen Solution
Just after replacing the screen on my iPhone 6 I noticed how both the flash and video camera work perfectly, even the panoramic view has no problem but the camera does not work. The camera app doesn’t show the screen because its all blurry. What did I do wrong and how can I fix it?.
You may have accidentally disconnected the back camera while replacing your screen. A more common issue is, your front camera flex could’ve been damaged in the repair process. If the front camera goes out, it could cause issues with the back camera.
