USB and Bios issue

Hi Guys,

Long time Reader, First time Poster. Let me apologize firstly if this is in the wrong spot.

I am having issues with my USB ports, very annoying. So I wish to update my bios.

the version on my machine is A04 and the latest is A12. quite a difference. I am out of warranty which is rather handy [sarcasm].

I have searched for a week, no clear definitive method, the 2 i have tried will not allow me to update the bios.

really in need of some expertise, Thanks.