E1-572G BIOS Downgrade

Hi.

I'm owner of an Aspire E1-572G and I am experiencing a fan-related problem, which is OS and Intel/AMD Graphics Driver independent, so I believe it's a BIOS problem and I want to downgrade it.

I am trying to launch the BIOS updater exe but the "Bios version compare error" appears, so I want to downgrade it manually from a USB stick or a "trick" to downgrade it from the .exe

Thanks in advance,

Manos.