@mykepredko I litterally dont have space for the usb connectors sticking out the side of the pi and mainboard.
Thank you very much @Sineos for the detailed instructions. I have already done exactly that and following the scematic from this post I have selected the PB11/PB10 serial port in the menu config flashed the new firmware connected the pins correctly, enabled uart in the pi, and set the path in printer.cfg to /dev/ttyAMA0 but it still won’t connect. I’m gonna do more troubleshooting later but if anyone has some suggestions what to test please let me know.