Just bought but won't turn it on

I think that the problem is exclusively software because it was not installed correctly from the official rom, so it would only be necessary to repair the Windows startup with the help of a Windows 10 home flash drive downloaded from the official Windows site.
You could also perform a fresh install of Windows with the official rom downloaded from here: [Hi10 Air] [Official Version] Chuwi Hi10 Air Windows, driver, Bios download