Chuwi Hi10 Pro: led flashes (even when the power supply is not connected), but does not turn on

I have a Chuwi Hi10 Pro that shows the led flashing all the time, but when I try to access it it does not start. Has anyone ever had a similar problem before? How can I fix it? Is there a guide to follow?

I have already tried the various key combinations, but the problem has not been solved.

Thanks in advance for your support.