Dell Inspiron 3542 BIOS archive for the Wistron board 13269-1, with FX3MC and A00 in the name. A00 most likely marks the first revision, but the name does not say whether it applies to the board or the BIOS. FX3MC appears to be a Dell part code. Five-digit numbers with a dash suffix are typical of Wistron-made Dell boards. Extract the image, check that its size matches the SPI flash, and back up the original chip before programming. Then flash it with a hardware programmer to recover a board that fails to POST.
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 .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 →