Hello
I don’t understand why is it even possible, considering big similiarity in how these two models look etc. but I’ve updated RZ04-03980 with RZ04-039802 update. Your installer allow it wich is shocking to me. It never should be possible. It caused bluetooth connectivity problems (progressive audio delay). Now I can’t install proper firmware for RZ04-03980 because it latest version is 1.1.6.0 and what I have installed on headset is 1.3.0.0 wich doesnt even exist for my model but installer doesn’t allow me to do anything as it recognizes my firmware as higher version.
Factory reset doesnt roll back update. Please help.