LO-X7 Display does not do anything, no control

[typomaniac]

Hey,

i have a big problem with my lo x7 which i bought from lo in may. I am still in the process of building the laser and the unit worked for the first basic setup. Today i turned it
on for the first time since 4 weeks and the screen unit does not do anything. You can hear that the stepper drivers get power from the controller unit and there is 24 volts
coming from the power supply. I checked any contact of the connector between display and controller and they seem to work. There is a small red led on which is barely
visible because it is inside the case of the screen (backside). It is on. I already set up the microstepping and the basic stuff but now there is no startup procedure anymore and no gantry movement.

André