Biosdisk read error

I am trying to power on Darwin, and am getting a biosdisk read error. Incan still navigate to the bios using a usb keyboard. Does anyone have any suggestions on how to fix his error?

First of all, try to recover with Clonezilla Image.

If the same error still apears, I think there is an I/O error in the built-in NAND flash.
If so, there is no proper way.
The SBC need to be replaced, but it probably will not be possible to get a new one to replace.