I just got a few EMXs recently and changed the firmware to 4.1.8 since some of my applications were built for this version in the past. Then I found that all the pins used for LCD could not be used as GPIO anymore, if I open any one of the pins as a digital IO, say IO69, then I will get the pin unavailable exception. I went through almost all the pins at the bottom of EMX, and got the same exception each time.
My PCB board was printed already, how could I disable the LCD pins and use them as GPIO in EMX.
Thanks a lot