I am trying to SSH to my LuckFox Pico and I am not able to. I tried to use the following commands

ssh [email protected]
ssh [email protected]

Am not getting any response from the LuckFox Pico. Am I using the correct IP addresses or not? Also how do I know that the LuckFox Pico is ready so I am able ...

I am trying to use the upgrade tool but I am getting the following message when I type the following command sudo upgrade_tool uf upgrade.img

Loading firmware...
Loading firmware failed!

I am using Ubuntu 22.04. I have followed the instructions on the website. My LuckFox Pico has a MicroSD in it ...