Would it be worth sending to Ag Express to repair? About seem to need it to operate planter. I was contemplating changing screens with my "good" UD+. Wish there was a way of exchanging firmware. Just now thought of maybe I could just change out the "guts" with mine and let the screens alone!?

I could also take a Pro 600 out of my 2577 combine and might have better luck getting it to work with my planter then the 700? I would need to get a harness adapter though I suppose. My 2000-2388 had the UD+ in it and I put a 600 in it but used an adapter harness. It went with the combine when I sold it.