Lenovo branded BIOS for the ES10ISX motherboard, in a 1.19 MB RAR archive. The same board appears under many regional labels, and this build carries the Lenovo identity and splash screen. It serves to recover a unit with corrupted firmware or to restore its original branding after a generic image was flashed. Program the SPI chip with a hardware programmer, but first read and archive the current contents, verify the ES10ISX code printed on the PCB, and confirm that the extracted file size matches the 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 →