Thank you for your reply. I am well aware of the difference between the C02 and the B04 versions. However TX2i should Auto-Power-On on B04 without a problem as written in NVIDIA OEM document section 4.8.2. All is needed is that the POWER_BTN# will be left floating:
4.8.2 Jetson TX2i Auto-Power-On Details
For Jetson TX2i, which uses a different PMIC (and does not have the circuitry on TX2 4GB to make it compatible to TX2), the
POWER_BTN# pin needs to be held high. The TX2i PMIC has a level sensitive on input, so to power automatically when the
main power is applied (Auto-Power-On), all that is required is for the POWER_BTN# pin to be pulled up. Since this pin is pulled
up on the module, it can be left unconnected for Auto-Power-On to be supported.
I do not need the power button functionality so I do not need to generate a level from the edge of the button. This pin is floating on my design as written above and pulled up internally on the module so I do not understand why it is not working.