This is odd. The Zotek website offers v1.27, and that's what people seem to be generally talking about. But the one I just got shows firmware 1.30.
Interesting bugs found so far: While showing it to a friend, first the trigger position indicator disappeared. Only the tiny green right arrow at the top right showed, but no amount of scrolling left and right brought the trigger position into view, and in fact, scroling was infinite since it kept wrapping around.
Shortly after that, the trigger mode button stopped working. It was just stuck in "Auto", no way to go to single shot any more. Toggling the unit off and on, and toggling between scope and multimeter mode, changed nothing. Resetting the scope to defaults fixed it.
Also, shouldn't there be a way to change the scale/position settings for channel 2? Selecting channel 2 in the menu affects nothing; the directional buttons still change channel 1. The only way I've found is to disable channel 1 temporarily; then they access channel 2.
One hopes for active bug fix updates. But again, why do I have newer firmware than what is downloadable?
Main dislike other than the issues above, is that the buttons need a pretty heavy press.