BIOS archive for Dell Wistron board 18723-1, holding 16MB and 8MB images marked as working. The two sizes suggest a board with two SPI flash chips, so write each image to the chip of matching capacity. The name gives no laptop model, and Wistron's dash-suffixed number is the main identifier. Use an external SPI programmer to recover a board with corrupted firmware. Read and save the original contents of both chips first and confirm the PCB number matches 18723-1.
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 @schematiclaptopramkushwaha. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →