Regarding the revive function I can't help you, I just told you what Gigabyte Support told me, sorry.
I would try with the other CPU if you haven't already done that, sometimes BIOSes reset their parameters further when they discover a new processor.
Otherwise send in for repair and refer to the BIOS bug (discovered by Gigabyte engineers in Germany). Nothing is broken, they just update the firmware and you get the same board back.