sp52953 HP dv6z-3100 CTO

[5P33DYF4N]

Hello.

I am wanted to increase the voltage of my video card but when I try to flash my bios with InsydeFlash I get “The BIOS image is corrupted or does not contain the correct digital signature...”
Before I attempted to flash, I found the ROM File containing the information for my video adapter and modified the ROM (with RBE) with my desired voltage, and I integrated the modified Rom into the new modified BIOS. I feel like I am close to achieving a BIOS flash (being successful or not). Any help?
I have an HP dv6z-3100 CTO.
Using sp52953.exe (most current one).

Unmodified BIOS, modified ROM, etc. can be downloaded from the link below.
dropbox

Thank you!

[5P33DYF4N]

And so...my journey on waiting for an answer/solution begins! XD