BIOS image for the HP DreamScreen 400 smart display, built on an MSI-style MS-A9251 board, packed in a ZIP archive of 484 KB. The name indicates a 1MB dump, so the target SPI flash should be an 8 Mbit part. Technicians use such an image to recover a unit that fails to boot after corrupted firmware by writing it to the chip with a programmer like a CH341A. Read and save the original chip contents first, and confirm the MS-A9251 marking on the PCB before flashing anything to it.
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 →