How can tx2i be resolved by automatically restarting after poweroff?

My TX2i module will automatically restart after the power is cut off on the development board

1481453418,

Do you mean the sw command from ubuntu does not work?
Could yous share what command are you using?

I used the poweroff .

1481453418,
We just checked the difference between tx2 and tx2i.

PMIC on TX2i indeed does not support poweroff.