Iphone 11 is on but screen is black

- Iphone 11 phone is on but screen is black
- Iphone 11 vibrates but screen is black
- Iphone 11 screen is black
- Iphone 11 pro max is on but screen is black
- Iphone 11 turns on but screen is black
- My iphone 11 is on but the screen is black
- Iphone 11 working but screen is black
- Iphone 11 rings but screen is black
- Iphone 11 pro working but screen is black
- My iphone 11 pro max is on but the screen is black
- My iphone 11 is ringing but the screen is black