I recently installed Marlin 18.104.22.168 onto my Creality CR-10S. After doing so, the temperatures for both the bed and hotend now read -14 °C. I have changed the setting in the Marlin
configurations.h to several different thermistors, and it either reads 0 or -14 °C.
I have now installed several different versions of Marlin and with each one I experience the same problem.
Is there some tuning setting that I am missing or has installing the firmware somehow fried something on my board?