By the way, where is the full V5 available?

I could only find the beta version…

I want to try and install the new firmware, since sometimes some problems get solved when the firmware is installed again, but would rather install the latest one right away rather than the old 4.0.0 (mine is still at 3.2.0[10]).

Guess that probably won't do it, but I'm sure it's worth a shot.