HP Pavilion G6-2151sf bad flash Main and EC

[Satanyka]

Good morning all,

I bought an HP Pavilion G6-2151sf

CPU: i3-2350m
GPU: AMD HD7670m

My problem is that the BIOS is corrupted, 2 flashes of the caps lock LED (BIOS corrupted at HP).
I wanted to save the original BIOS on the chip but it's empty ... I think it was tinkered.
I recovered the BIOS on the HP site but I read on the site Bios-Mods that it is not possible to directly flash a .BIN file on a new chip without making modifications via a hexadecimal editor, but my capacities don't are at this level...

I have a CH341a programmer and a new chip.

How to make for a bios specific to my configuration?

Sorry for my bad English...

Thank you all