Iphone XR frozen- only apple logo displays on restart

My Iphone XR was irresponsive and I restarted it to find that only apple logo is displayed. I have tried force restart (up button+down button+side button) but again the screen does not go beyond the apple logo display. I tried to restore through itunes but again the problem is itunes does not detect my phone (it does not go beyond the logo display on restart). Plz suggest solutions?