After last update (30.04.2022) i have problem with connection "error: mcu 'mcu': Serial connection closed"

Recently updated my Klipper via Fluidd to the Actual Version v0.10.0-391-g722ad4a1 and after restart i have this error log :frowning:


mcu ‘mcu’: Timeout on connect
mcu ‘mcu’: Wait for identify_response
Traceback (most recent call last):
File “/home/py/klipper/klippy/”, line 69, in _get_identify_data
params = self.send_with_response(msg, ‘identify_response’)
File “/home/py/klipper/klippy/”, line 258, in send_with_response
return src.get_response([cmd], self.default_cmd_queue)
File “/home/py/klipper/klippy/”, line 316, in get_response
File “/home/py/klipper/klippy/”, line 250, in raw_send_wait_ack
self._error(“Serial connection closed”)
File “/home/py/klipper/klippy/”, line 62, in _error
raise error(self.warn_prefix + (msg % params))
error: mcu ‘mcu’: Serial connection closed

Debian PC connected to MKS Robin Nano 1.2 via USB (serial: /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0) baud: 250000
Klipper - v0.10.0-391-g722ad4a1
moonraker - v0.7.1-562-gcd520ba

Kiauh is detecting my MCU via USB. (/dev/serial/by-id/usb-1a86_USB_Serial-if00-port0)

-Rebuild and Reflash MCU with new Klipper firmware. (No effect)
-Reinstall Klipper, Moonraker, Fluid. (No effect)
printer.cfg (15.3 KB)
klippy (24).log (79.3 KB)

Please check the instructions at the top of this Robin Nano example config and make sure all options match, and you ran the script before flashing.


OMG U R MY BEST FRIEND NOW! :sweat_smile:
I have waisted 2 days of my life for this problem)
I just forgot to use this script ./scripts/ out/klipper.bin out/Robin_nano.bin
Thank you very much! God bless you! :heart: