i bought myself a vertex k8400 with two nozzles ,i started with one as re commanded a few adjustments en the first prints roll out so far so good .
now i want to update the firmware and did everything by the book but the last part i am not able to do because there is no more info on the little lcd screen.
i took out the shunt and and put on the power the nozzle heats up but no lcd screen ??
so can anyone tell me what went wrong? and better how to restore this problem.
i did all this action on a apple computer but used the right drivers and so on
is there anyone out there ho can and will help me with this issue