Jetson Xavier AGX H01 Kit Driver Installation

hi there!
I have a new Jetson Xavier AGX H01. I unboxed it and tried to run it. first time everything went fine, then I opned Youtube but videos were not running at all. Then, I tried to install opencv as JetsonHacks made. I could not install it at all ever time it says the Installation went wrong!!!
I decided then to reflash it. I followed this link you provide.

it went fine I got Ubuntu installation wizard
then the system suddenly reboot and got not boot at all after I made the Ubuntu installation
I got tty but GUI wasn’t there!!

what happned here!
please help!
second time had bad exprices with seeed prouct

this what I am getting

[FAILED] Failed to start Load Kernal Modules