How to solve Intermittent touch issue on Original iPhone XR screen? 

💧1.It's caused by incompatible of different LCD brands mostly.
🔥2.Identify two Brand LCD for your phone like following picture
💥3.LG with a square QR code on its display flex cable connector, while Toshiba has a rectangular QR code on its display flex cable connector.
💧4.Use LG+LG brand/ Toshiba+Toshiba will not have Intermittent touch issue.