lcd Rambo 1.4

Hello I am looking for a solution, I have installed my rambo 1.4 first installation, it worked ok I could move the engine really happy, then I collected the USB wire to my computer it seemed to be connected I tried some command with the control estlcam no answer i went back to my rambo card and lcd there was the V1 Engenering logo that was freezing, i made a reset with the reset button on the rambo, now on the lcd there is no more writing, the card Rambo is still connect to the computer it seems to communicate with the computer but at this point I do not know what to do.

thank you so much

This sounds familiar. I think I saw someone else with the same issue. I think they fixed it by flipping one of the LCD cables around the other way. I could be wrong.