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 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 How to Turn ON or OFF Vibrate on Ring on iPhone 6 Plus How to Turn Off iPhone Vibrations for Phone Calls How to fix the iPhone Black Screen of Death Asurion Here's Why Your iPhone Randomly Vibrates & How to Fix It