Why my iPhone 6s camera shows only a black screen?
Why do I only have a black screen?
[Re-Titled by Moderator]
Why do I only have a black screen?
[Re-Titled by Moderator]
No clue. Did you try troubleshooting with the steps in https://support.apple.com/en-us/HT203040?
If you did and the issue persists your phone likely needs to be serviced by Apple or one of their authorized service centers.
Why my iPhone 6s camera shows only a black screen?