BIOS archive for the HONOR MagicBook X 15 on board DAH98MMB8D0, with a 16 MB image, stored as an 11.1 MB RAR. DA-prefixed board numbers follow the Quanta pattern, so Quanta manufactured this board. The 16 MB image fits a 128 Mbit SPI flash and is written with an external programmer to recover boot failures or corrupted firmware. Read and keep the original contents first, and check the board number on the PCB, since a mismatched image can leave the laptop dead.
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 →