My iPhone Won't Ring! Here's The Real Reason Why. Why Your Phone Vibrates but Doesn't Ring on Incoming Calls iGenius Phone Repair iGenius Phone Repair phone won't ring, only vibrates iPhone 6s Plus iFixit 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 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