Best posts made by Lachlan

@droftarts I have 3.4.0 on the screen and 3.4 on the duet 2. Have tried uploading the firmware many times with no joy.
Getting the exact same response when I plug the Paneldue into the computer. The computer and BOSSA recognise the screen, but the screen is still black.
With these things in mind, I believe that the back light driver has failed as you said. I believe this happened when the previous Motherboard shorted out when a contractor was attempting to re-wire it. So probably not valid on warranty.
Thank you for your help
Lachlan