Hi, I am not certain what I did as I was trying for 2 days. It could be that I pressed the reset on the mainboard. I was trying so many things. I used Cara to give me the files direct onto my SD card. In settings I know I went to extruder ans clicked extruder OFF. I also clicked disable stepper. I am sorry it was just try and error as I knew the setting the heat bed was correct and the unit went to its parking place when I pressed home all. Cannot suggest anything else. Good luck let me know if you get it working. I still have problems as i have to move the nozzöe to the centre to start printing as it wants to print where it parks at the front left corner.