Firmware package for the Fujitsu LifeBook E743 with board number CP621880-Z1, containing both the system BIOS and the embedded controller firmware according to the name, compressed as RAR. The EC image matters on Fujitsu machines because a corrupted EC chip can cause no power, no charging or fan faults even when the BIOS is fine. Write each image to its own chip with an SPI programmer such as a CH341A, after reading and saving the original contents first. Make sure the image size matches the flash capacity and that the board number on the PCB is CP621880-Z1.
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 →