I am new to printer modification. Is there anyone with experience on PID tuning and upgrade. I upgraded my older printer with a new part: https://www.artillery3d.com/products/artillery-sw-x1-genius-full-metal-extruder Upon complete the autotune, I cannot update the stock configuration due to limited access to the EEPROM. If any of you worked on upgrading what is your solution on this problem? I cannot believe it is product sold by the same company of the printer and this is what I have to put up with. If autotune is not convenient in this case, then I will consider swap the board with custom built. For a board upgrade how can I config the firmware setting according to my hardware standard? Or does the board comes with firmware or I need to custom install it? Sorry this maybe off the topic but there seems no better place to ask these kind question.