Firmware image for the Biostar TB250-BTC PRO mining motherboard, version 6.0, read from a Winbond W25Q64BV chip. That part is a 64 Mbit SPI flash, meaning the full image should be 8 MB. The ZIP archive is 4.47 MB compressed. Technicians write it with a programmer to recover a board that no longer posts or lost its BIOS. Compare the PRO model and version printed on the PCB, since the non-PRO board differs, back up the current chip, and verify size before flashing.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →