Reflashed klipper (ender v3 se) and now getting mcu error

Hey all,

Finally fixed this after a few weeks of frustration and tinkering. Actually spent about an hour ‘talking to’ chatgpt and one of its suggested resolutions was to check baud rate in printer.cfg.

I didn’t have it.

My thought is that the default baud rate is 250000, but the ender v3 se required 115200. Because of that, I think you have to explicitly set that under mcu settings in printer.cfg.

For anyone else facing this issue, heres what I added to my mcu settings in printer.cfg:

[mcu]
serial: /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0
baud: 115200
#serial: /dev/ttyUSB0
restart_method: command

Hope this helps. Just wanted to tie a bow on all this chaos. Thanks all for the help :slight_smile: