MK1 Kickstarter Printer Extruder not working

I accidentally pulled the harness connector on the MKI Extended printer while printing trying to swap a new spool of material… I know I should have stopped the print but I was trying to keep up the speed on making medical masks and now I am dead in the water. I have read on other posts that I may have nuked the motherboard? I am not sure how to check extruder motor, Harness. I would like to know if I can order the MK2 to Mk3 Upgrade package that comes with the CPU and Motherboard?


I had a broken Ribbon cable to the extruder. After building a new cable the extruder was working again… .