BIOS package for the Acer Extensa 15 EX215-22 on Quanta board DA0Z8EMB8C0, revision C, in a 7.62 MB RAR. Quanta numbers its boards with a DA prefix, project code Z8E and a trailing revision letter, so check that the PCB reads the same before use. Such a dump is used to rewrite a corrupted SPI flash with an external programmer. Back up the original chip first and pick the image whose size matches the flash capacity.
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 →