Why does my iphone 6 keep shutting down to a black screen whenever I close down the main screen
This started two days ago. I went to store and he performed a hard start. He said when the phone detects a problem it won't continue to charge, and the phone shuts down. He started it up and it was fine until this morning. It was difficult to hard start, but finally it came on. I turned on the screen lock to save remaining power, but when I went to check it, I couldn't turn it on again and had to hard restart.