If your iPhone screen is completely black but the phone still vibrates, makes sounds, or shows other signs of life, you're likely dealing with a failed OLED display. In this video, I My iPhone Won't Ring! Here's The Real Reason Why. How to repair an iPhone not vibrating on silent or ring mode? How Do I Fix My iPhone 13 7 Not Ringing Problem Cool phone tip I just learned You can keep your phone on silent and still hear calls or texts from specific people like family, close friends, or co commanders . Here's Here's Why Your iPhone Randomly Vibrates & How to Fix It