Lenovo IdeaPad Z560 BIOS firmware in a 1.68 MB RAR, with LA-5752P in the name. LA-5752P is a Compal-style board number, and the same number appears in the G560 dump. The archive does not state the chip size or the revision, so extract it and compare the image with the flash chip before writing. Flash it with an external SPI programmer to recover corrupted firmware, keeping a copy of the original contents. Check that the PCB is labelled with the same LA number.
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 →