Device already contains the newsest firmware

[Guest hippiegunner]

if I want to update my omnia i get the following error following;

Device already contains the newest

is there a way to update my omnia?

[Guest hotlink]

I also having the same problem, after tried out few customs firmware and now thinking to go back original rom from samsung website.. but it not allow me to go further...

do we need to downgrade the rom then go for original rom?