[RESOLVED] My lattepanda is now a brick !

For some reason, it is pretty easy to make an error when "resetting" BIOS and then to transform it into a brick: no display, no USB at all! I was stuck with a blue screen "Just a moment..." so I decided to go the BIOS but I had a bad movement and select one of a line in the last tab which allows to save/cancel and reboot. So when rebooting, my keyboard, my mouse is never powered on so I can never go to BIOS again. Display is always off. I'm stuck because there is no way to enter this BIOS or to reset it in a stable state where USB and displays may work.
Here my YouTube video to expose the issue with my LattePanda: https://youtu.be/XivyXBvSt8g.
EDIT: Before it turned into a brick, I also had this repair error screen only once:
recoverylattepanda.jpg (167.38 KiB) Viewed 11081 times
Here my YouTube video to expose the issue with my LattePanda: https://youtu.be/XivyXBvSt8g.
EDIT: Before it turned into a brick, I also had this repair error screen only once: