unlock bios request !

[ser31l2]

Hello ,  after a lot of time spent in google for searching about my motherboard and bios ι came to this forum for help . My motherboard is that you can see in picture .  It has locked ov menu , so i cant do anythink with cpu . In this forum i saw a lot of tools and other stuff to modify bios but in that category i dont understand a lot and i dont know to much . I tryed to download new bios from asus site and after tryed to flash it but i got error saying "ROM ID IN FILE IS INCOMPATIBLE WITH EXISTING ROM" so from that point i dont know what else to do .  So can anyone unlock my bios for me please (if is that possible)?

Thanks in advance