If your iPhone goes black screen or low light on the screen, it response, rings or does other thing but you can not see the screen that is backlight issue. This is a typical repair service we offer at iPhone Repair Service Dallas, blown back light on an iPhone 6 or 6s is typically caused by a screen replacement gone wrong or a sudden drop on the phone which can damage some of the components on the backlight circuit.
iPhone 6 Plus Touch Disease- Motherboard Repair
Apple has determined that some iPhone 6 Plus devices may exhibit display flickering or Multi-Touch issues after being dropped multiple times on a hard surface and then incurring further stress on the device. We Fix this kind of problem which comes from motherboard.