BIOS for an Acer laptop on the Compal LA-J891P board, revision 1B, for the Core i5 version and marked fully working. The 11.3 MB RAR should unpack to an SPI flash image, so check which file matches the capacity of the chip on the board before writing. Compal uses the LA-xxxxP pattern for its motherboards. Compare the revision on the PCB, read and back up the original contents with a programmer such as a CH341A, and verify the chip after programming.
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 →