Chosen Solution

iPhone keeps crashing after 180s. There is a kernel panic: watchdog timeout: no successful checkins from com.apple thermalmonitord in 180 secondsinservice Missing sensor(s): Prso com.apple.logd, total successful checkins since wake (330 seconds ago): What is wrong with this phone ?

The iPhone XS will reboot every 180 seconds if the charge port assembly has become faulty. If you plan on replacing it yourself I would suggest purchasing a pulled one from an original phone as some of the aftermarket ones have faulty or no sensors and it will still reboot.