Version 2.0 of the EM_IW522 firmware, stored in a 4.02 MB RAR archive. The name carries no brand, board number or chip information, so the target hardware has to be confirmed from the contents or the device itself. A newer V3.0 build is also catalogued, which may suit later hardware. When reflashing with an external programmer, read and keep a dump of the existing chip, make sure the image matches the flash capacity, and verify after writing to avoid bricking the device.
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 →