I got an Xbox One X that someone replaced the retimer chip and then it would not even turn on. The situation is exactly like Steve’s video from July 26, 2019 " They Couldn’t Fix Their Xbox One X - Can I?"
This chip was so misaligned that there were several pins on the chip shorted together. After reinstalling the chip the console still won’t power on. Before I dive into this one, maybe someone has experience to say something like “oh, it’s the…”. One can only hope.