BIOS Mod for a HP 450 G3 laptop.


I’m new on this forum because I have a laptop with a badly flashed BIOS.
The original BIOS flash tool from HP doesn’t seem to work, so a friend told me that maybe somebody on this forum, could create one that will work.
I got a USB drive with the original BIOS Recovery on it. I downloaded it from the internet. But for some reason the Recovery doesn’t start…the laptop keeps beeping, twice long - twice short.

Hopefully anybody can help save my laprop

Thanks everybody who might be able to help.