Bought a VEVOR 3020 usb CNC from ebay http://www.benl.ebay.be/itm/252707953708?ul_noapp=true
from a Chinese seller called "discountdesignsltd "
They delivered the machine from a German warehouse , after 3 days , complete with software and activation code for it ( coupled to the serial no of the USB controller box ) .
So far so good. It worked fine , until the program & firmware did an automatic update .
After that , the serial # of the USB controller box was changed , and the software
( PlanetCNC: "USBCNC controller" ) felt back to demo mode. ( only 25 steps are executed ).
The Chinese vendor sent me a new activation code for the changed serial ,
but after one use I got the same problem .
Serial no of the USB controller box changed again , and software goes back to evaluation mode .
Anyone can help me . Don't know what can be done anymore . Hopeless !!!
I think i'm very cheated !!!
Regards , Roland