Firmware dump in a RAR archive, labelled with the Winbond W25Q64BV flash part and a programmer-style date and time stamp, and marked as unlocked. The name gives no laptop model, brand or board number, so the target device must be confirmed some other way before use. The W25Q64BV is a 64 Mbit (8 MB) SPI NOR chip, so the image inside should be exactly 8 MB. Read and save the original chip contents first, then check the dump with a hex editor or UEFITool before writing it with a CH341A or similar programmer.
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 @dtechbios. 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 →