Cannot flash jetson Nano

Hello,
I am trying to boot my jetson nano, which has not an sd -card. It’s a waveshare product which they don’t answer to my emails. I tried to do with sdk manager manually, but it popped me this message
Please is someone can help I am really desperate to make it work, I cannot found another jetson nano with the sd card to order it and be done it with the installation.
I have been using virtual machine linux ubuntu 18.04 (Linux jetpack 4.6.1)

many thanks.

my product which have bought
https://www.hellasdigital.gr/computers/accessories/jetson-nano-developer-kit-4gb-a-ic/

Do you know that you have to put jetson into recovery mode so that the flash process can start?

yes. I have follow these steps:

I have short circuit between gnd and FC red via jumper

Is your host machine able to see it in lsusb?

yes yes

SDKManger does not support VM

Then, I should eg in my old laptop. The correct linux 18.04 and start again the procedure and hopefully will run smoothly?