No, you misunderstood some details.
there is no bug with SR and bug with AF is a feature, because there is difference between labels drawn on Pentax and Samsung models (Pentax has labels on camera, while Samsung on AF-points-dial ring). That's causes issue with reversed selector.
And he hadn't updated camera him self. He bought it in such condition from shop. When he tried to update, then he realised that he has GX with K firmware (he tried to update, but cam refused, then he found he has pentax firmware. And then he had made an experiment - he uploaded pentax firmware and cam was ready to update (but he hadn't done it))
