Searching for the Android & Windows firmware

I have a Chuwi H10i Pro Serial HQG4G42180300761 with keyboard who crashed during a Win update procedure. Since then I have only access to the BIOS Setup Screen and the Win ReBoot Screen.
Rebooting don’t work and the system turns into a loop procedure without any result.
Searching now the download link for the Android/Win/drivers firmware to reinstall my Chuwi.
Looking also for the installation manual.