I bought a new iPhone XR, and set it up yesterday. It worked fine, and then I went to bed at about 12:30. I put it on charge, and then when I woke up this morning the screen was glitching. I restarted it, and the glitching stopped, but the touch screen no longer works so I can't work the phone. I has restarted it serval ways, and have updated it several times but it isn't working. I have not restored it to its original settings and it still is not working. What is the issue with it and how can I fix it?