BIOS for the LG Z70EV laptop, with the code AP5TBYE in the name, likely a firmware or model identifier, stored in a 3.93 MB RAR archive. No board number or revision is given, so confirm against the model sticker and the mainboard itself. A technician uses an image like this to rewrite the SPI flash with a programmer when the notebook does not start or is stuck on a corrupted update. Read out the original chip first and check that the file size matches the flash capacity before writing.
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 →