They located the correct 8MB BIOS file, manually selected W25Q64 in the programmer (not W25Q128 ), and the flash completed successfully. The laptop powered on immediately after re-soldering.
The extension simply means it’s a raw binary image—the exact 1s and 0s that need to go onto the SPI flash chip. 113094m bios bin full
is firmware used to perform hardware initialization during the booting process and to provide runtime services for operating systems and programs. It's stored on a chip on the motherboard and controls the computer's hardware settings and provides a interface for the operating system to interact with the hardware. They located the correct 8MB BIOS file, manually