BIOS for the Q64G451707xxxx Series Tablet

Hello, I can’t find firmware for the Q64G45170702884 series tablet anywhere. The device a brick. I tried different versions of the BIOS firmware on the site but none suited. Please drop the link. Help please

Before you tell me the serial number, please tell me what type of product you have.

this is a chuwi hi12 tablet

daul boot or single boot?

This bios is for Hi12 daul boot 1707:

dual boot. But is there a chuwi hi12 of this single boot series?