Based on the information provided, it seems that the iPhone 11 Pro Max A2161 is still throwing the thermalmonitord panic even after replacing the power flex cable. The error message indicates that there are missing sensors, specifically the mic2 sensor, and that the thermalmonitord service is not returning a successful check-in.
Here are a few additional suggestions that you could try to troubleshoot the issue:
# Check the mic2 sensor: The error message suggests that the mic2 sensor is missing. Try checking the sensor to ensure that it is properly connected and functioning correctly. If the sensor is damaged or not functioning properly, it may need to be replaced.
# Check other sensors: It's possible that other sensors on the phone may be damaged or not functioning properly. Try checking all the sensors on the phone and ensure that they are properly connected.
# Restore the iPhone: Try restoring the iPhone using iTunes or Finder. This can sometimes fix software issues that may be causing the panic loop.
# Contact Apple support: If none of the above steps work, it may be best to contact Apple support for further assistance. They may be able to provide additional troubleshooting steps or arrange for a repair if necessary.
It's worth noting that water damage can be difficult to repair, and there may be underlying issues that are causing the panic loop. I hope these suggestions help, and good luck with your repair efforts.