How do i update my motherboard?

Hey guys so i went to gigbytes site so i can update my motherboards bios and everything but i couldnt find anything about my motherboard on there my motherboard is Gigabyte 28ac and AMD RD9x0.


 


Make sure that if you do end up doing a BIOS update that you have a non-failing internet connection and ensure that the power will not go out at any time.