Main 4 MB BIOS dump for a Dell laptop built on Wistron board 10272-1, the companion to the 256 KB EC image for the same board. The model is not named, so match the 10272-1 marking on the PCB. Wistron uses this five-digit dash-suffix pattern. Write it with an SPI programmer to recover a board with corrupt firmware, flashing the EC image separately to its own chip. Back up the original contents first and verify after the write.
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 @biosfilebins. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →