You’re happy that that didn’t work! Can’t see the command you used (seems you tried to overwrite ME region with a bios region?) but this would a 100% have bricked your machine!
WHEN USING FPT DON’T IGNORE SIZE WARNINGS!
This thread is about a corrupt ME of a HP Elitebook 8560p, not about a HP Probook 6470b and not about circumventing flash protection of the bios region.
I’d recommend reading about bios structure, bios regions (HP doesn’t offer a complete firmware with its bios updates!!) and searching the forum about circumventing flash protection.
Anyway- it’s good that you at least dumped your bios region!
Just in case:
(And since HP doesn’t provide a complete firmware image- you’ll need the first ~11 MB of your firmware from your own chip in case of a brick in addition to the bios region you already dumped. If you overwrite these regions without having backed up them before- just as you tried- you’re quite dead in the water)