Jetson TX2i carrier card: Software shutdown issue

Hi,
We have designed a carrier card around Jetson TX2i. The software initiated shutdown is not working and the system gets restarted without the pushing the power BTN. Which pin changes its logic level, whenever there is shutdown initiated from OS ? I assumed the Carrier_Pwr_On signal should go low in this case but I probed the pin and it remains high during shutdown process. Which pin can be monitored for software shutdown?

Thanks
Goutam

Software shutdown is not supported per this topic: Custom cerrier board for TX2 and TX2i power on/off

Ok. Thanks. I think this needs to be supported.