Acer Z1 series BIOS image for the MBPNCBT414-1320 board, in a 3.13 MB ZIP. It restores the SPI flash on units that stay dead, loop or show no display after firmware corruption. The same board code is found on Acer One 14 Z1401 machines, so check the PCB marking before writing. Dump and keep the original chip first using a programmer such as a CH341A, and confirm that the image size matches the flash capacity, since a wrong size will not program correctly.
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 →