Motherboard BIOS for the Positivo XC3552, which the name ties to the S14CT model and board A14CT0X, in a 3.30 MB RAR archive. No revision or firmware version is stated, so compare the PCB markings and the archive contents before use. A dump like this is used to recover a notebook with corrupted firmware by writing it to the SPI flash chip with a CH341A or similar programmer. Read and archive the original chip first, and confirm the image size equals the chip capacity, or it will not fit.
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 →