BIOS image for board NB8510_PCB_MB_V4 with an HF suffix, packed in a 5.87 MB RAR. The name gives no brand, but the same board label appears on MateBook 14 schematics in this index. The file is meant for reflashing the SPI chip with a programmer to recover a laptop that will not boot or shows no display. Confirm the board label and V4 revision on the PCB, read and keep the original chip contents before writing, and check the image size matches the flash chip 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 →