I just received one of these and installed the (official, "$350 equivalent value", now free) unlock code. Status now reports all *available* options as "official," and they do appear to work.
It does *not* now claim to be a DS1104Z, as a hacked/unlocked unit apparently would.
But... I took it into the lab, and (according to venerated gods of Marconi, HP and Tektronix) the rise time is about 3.5 ns, and the 3dB bandwidth is something like 100 MHz... what gives?
I don't really feel like un-installing the opts just to see if it was precocious to start with. Has anyone else tested what actual bandwidth you get out of the box with a stock, un-optioned DS1054Z ? These Rigol threads are so utterly choked with bull$hi+, you can't find anything that was actually measured.
I had already generated a Riglol hack code, but under the circumstances I'll probably keep the little guy under warranty; the better is the true enemy of the good :^)