@guarinex70 Is it a laptop? Unfortunately for laptops, the Flashrom project people recommend not to use flashrom, due to poor support. If it is a laptop and unless you have means to recover if something goes wrong, I suggest asking on the Flashrom mailing lists whether they think it’s safe. On the other hand, if I’m mistaken and it’s a regular desktop PC, you should be okay in my experience. I’ve flashed several desktop computers with flashrom without problems.

@guarinex70 Sorry I don’t speak Spanish, so I’m working with what Google Translate tells me you said. Yes, the flashrom parameter to write the ROM file is -w, the video title shows the exact command I typed in for the procedure. And yes, that’s revision 2101 of the BIOS going in. I downloaded it from ASUS’s site: look for the product page for your motherboard if you have an ASUS, and the Download section there. For this board they’ve since released revision 2102 which I haven’t tried.