HP ProBook 450 G4 BIOS image with the Intel Management Engine region cleared, packed with an output image in a 5.57 MB rar. A cleaned ME region lets the firmware rebuild ME data on first boot, which commonly cures thirty-minute shutdowns, fan running at full speed or no-POST faults after a corrupt flash. Write it to the SPI chip with an external programmer. Keep a copy of the original dump first, and check the board number on the PCB because no code is given in the name.
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 @biosfilebins. 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 →