Using 2 UART simultaneously in Jetson Nano

Following this instruction

To my understanding, the process should be:

  1. Delete the line “console-port”
  2. Compile the .dts → .dtb
  3. Rebuild the kernel (this instruction: Welcome — Jetson Linux<br/>Developer Guide 34.1 documentation)

I am not familiar to this kernel stuff so please correct me if I am wrong.
Thanks.