The 10 Best Foot Massagers, Tested by PEOPLE Fix iPhone XS (Max) Black Screen But Still On Working, Black Screen of Death Problem, Blank Display How to Tell If a Dead iPhone Is Charging TUAW Vibrating Foot Massage Cushion Nuvomed Health 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 Portable Vibrating and Rolling Foot Massager For Pain Relief by TFH