I use Mind2S with the external graphic card. I had trouble to power on since nothing appear on the screen. I press maybe too long and now the white light on the button is blinking. According to the support it means resetting the bios.
Pressing and holding for 35 seconds until the white light flashes does indeed indicate a successful BIOS reset. At this point, you can disconnect Mind 2s from Mind Graphics.
Please connect the HDMI cable to Mind’s HDMI port. Then, go to Device Manager - Display Adapters, check the status of the graphics card, and provide a screenshot.