wow the planets must be in a bad place.
I have a RZNC DSP handheld controller.
Last night went out to start up the cnc and same thing..lit up..no response.
I connected it to laptop nearby. I could see the filenames in it had odd characters - gibberish actually, not chinese.
Contacted mfr they sent me the manual...lol...then told me to watch a video on youtube..lol
Now they have me in the queue for tech support.
Machine is a month and a half old.