How to flash Jetson Xavier NX?

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX
4

I have Jetson Xavier NX with 16GB emmc. It’s not enough.
I have 32 GB sd-card. I want to use it as a main storage.

There is this article wich says that I can do this by mounting the rootfs from an external:

It has a link to the guide I mentioned earlier.

I’m using versions from here: https://developer.nvidia.com/embedded/jetson-linux (35.4.1 on this moment).
Yes, my Xavier has sd-card slot.

How should I use it?