Have you already attempted resetting it by turning out the circuit breaker for a few minutes?
I have the same model oven/range MODEL # NE59J7630 with the same issue. I'm very disappointed with Samsung quality and services its less than 2 year old range and I was told sorry it's out of warranty.
I have a NE59J7630SS Range and the display is flashing. I have turned of power for 30 mins and back on. Did not help. After reading many others having the same problem and it appeared that replacing the control board was the solution I ordered a new board and replaced mine. It did not fix my problem. I'm thinking that it may be the display itself. Has anyone found another issue causing the flickering? Can someone from Samsung help. I know I am out of warranty but you would think with this many people having the same issue there would be a recall. Probably too much to hope for.
Hello there, I would love to assist you with this. Can you please send me a private message with your serial number?