Denon MC4000 won't load...Load 1 & 2, Back & Load Prep buttons just blink.

I used my controller last week with no problems. I have had it in a flight case since day 1. I just went to use it and the above mentioned buttons just blink. I tried to update firmware but I can’t get it into update mode. Any assistance would be helpful.

1 Like

Has anyone replied to this question? It happened to me as well. I’m stuck. Please help.