BIOS and EC firmware for a Positivo laptop board H14BT01 4L, revision 3.0. The RAR is 3.20 MB and should contain the main system image plus the embedded controller firmware. Positivo is a Brazilian brand, and 4L likely refers to a four-layer PCB, though the name does not explain it. Technicians use such sets to recover a board that does not power on after a failed update or a corrupted chip. Check the board marking and revision, back up the original SPI chip and confirm the image fits its 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 →