BIOS file labeled NH4CZ0X, revision 1.0, supplied as a 1.99 MB ZIP archive. The name gives only the board code and revision, with no brand or model. A related entry ties the same code to the Acer One 14 Z422, but that is not confirmed here. Such dumps are written to the SPI flash with a hardware programmer when the laptop has no POST or a corrupted BIOS. Confirm the code on the PCB, back up the original chip, and make sure the image matches the flash size.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →