As I have understand after replacing my screen in an iPhone XR the screen by itself is the problem. At the bottom of the screen I imagine there are the leds of the back light and that’s the part that gets hot. But as I know the iPhone X doesn’t have an lcd it has an Oled and so there are no leds for the back lights. I don’t know what else could it be.
Hi as i see there is no connector visible so i guess its hidden under the shield so maybe you can take off the metal shield and see what’s going on. Maybe you can look here at 0:50 to get an idea of where the wire is connected. (indeed its under the shield) https://www.youtube.com/watch?v=OpXizbze...
Maybe there is a problem with the ignition switch or the wires coming and going to the switch are damaged! you could check for continuity when in the on position to eliminate the switch from being the problem…
I found this one i don’t know if it helps you! https://hydrafitnessparts.com/products/l...-tr3000i-tr-3000i-treadmill-motor-control-board-lower-controller-lpca?variant=37431503356058
