Direct Answer: Need iPhone Outer Glass Repair or Full OLED Replacement? iPhone Outer Glass Repair is only necessary if your screen glass is cracked or shattered but the touch response is 100% functional, and the display underlying image has zero lines, black ink spots or flickering. However, if your touch screen is unresponsive, ghost-touching, or showing vertical colored lines and black spots, you require a Full iPhone OLED Screen Replacement. When the underlying OLED displa