Here's Why Your iPhone Randomly Vibrates & How to Fix It iPhone Not Vibrating on Silent or Ring Mode? Here's The Real Fix 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 iPhone randomly turned off and won't turn back on and keeps vibrating randomly every second iPhone Won't Stop Vibrating? Here's How to Resolve the Endless Buzzing What is this volume on my mom's phone? I have no idea what it is I've never seen it before : r pixel_phones