New firmware v 1.3.5.22

[laffsj]

Hi, I have a K1C and use the helper script. I usually install Moonraker and Nginx, Mainsail, Klipper Gcode Shell Command, Klipper Adaptive Meshing & Purging, and Improved Shapers Calibrations.

Recently, there was a firmware update for the K1C (version 1.3.5.22), and I noticed the camera stopped working in the web interface. After researching online, I discovered that the camera component had been changed to use a different method, effectively disabling a service. I managed to work around this and get the camera running again using information found online and AI to help with the code; here is how I did it:
I created a file in the /etc/init.d/ folder named S60mjpg_streamer
File code:
#!/bin/sh

start() {

COUNT=0

while ! pidof cam_app >/dev/null 2>&1
do
COUNT=$((COUNT + 1))

if [ "$COUNT" -ge 30 ]; then
exit 1
fi

sleep 1
done

if pidof mjpg_streamer >/dev/null 2>&1
then
exit 0
fi

exec /usr/bin/mjpg_streamer
-i "/usr/lib/mjpg-streamer/input_memfd.so -t 0"
-o "/usr/lib/mjpg-streamer/output_http.so -p 8080" &
}

stop() {
killall mjpg_streamer 2>/dev/null
}

case "$1" in
start)
start
;;
stop)
stop
;;
restart)
stop
sleep 2
start
;; esac

exit 0

After that, I used the commands:
sed -i 's/\r$//' /etc/init.d/S60mjpg_streamer

chmod 755 /etc/init.d/S60mjpg_streamer

• Turn the K1C off and back on; the camera will be working.

The question is: are there any other changes needed to use the scripts I mentioned above?

One thing I noticed is that, when performing the input shaper calibration, the console ends with the commands: Klipper state: Disconnect
Input Shaper Calibration complete!

The SAVE_CONFIG command will update the printer's configuration file
with these parameters and restart the printer.

Now, more messages appear:
{"code":"key61, "msg":"Unknown command:LOAD_AI_SET_AI_CONTROL_PREFER", "values": ["LOAD_AI_SET_AI_CONTROL_PREFER"]}
{"code":"key61, "msg":"Unknown command:FILAMENT_RACK_MODIFY", "values": ["FILAMENT_RACK_MODIFY"]}
{"code":"key61, "msg":"Unknown command:BOX_ENABLE_AUTO_REFILL", "values": ["BOX_ENABLE_AUTO_REFILL"]}
{"code":"key61, "msg":"Unknown command:BOX_SET_PRE_LOADING", "values": ["BOX_SET_PRE_LOADING"]}
Klipper state: Disconnect
Input Shaper Calibration complete!
The SAVE_CONFIG command will update the printer's configuration file
with these parameters and restart the printer.

[pat59530]

bonjour;
+1 sur K1 Max

Même problème ici avec le firmware v1.3.5.22. En faisant une installation minimale (Moonraker, Mainsail, Camera Settings Control), le flux caméra ne remonte plus du tout dans Mainsail, fluidd, creality mais fonctionne sur l'appli creality cloud sur Android.

Merci pour le contournement avec le script d'initialisation !

[nerdoc]

could you write in English?

[nerdoc]

Confirmed on a K1 (firmware build 2026-06-25) — your script works. Three additions that
saved me some trouble:

1. Back it up outside /etc. A firmware update wipes /etc/init.d — that is exactly
what broke the camera in the first place. /usr/data is a separate partition and survives:

cp /etc/init.d/S60mjpg_streamer /usr/data/

After the next update, copy it back.

2. Don't let the wait loop stall the boot. rcS runs the init scripts sequentially, so
the while ! pidof cam_app loop delays everything after it by up to 30 s. Running it in a
backgrounded subshell avoids that:

start() {
    (
        i=0
        while ! pidof cam_app >/dev/null && [ $i -lt 60 ]; do
            sleep 1
            i=$((i + 1))
        done
        sleep 5
        pidof mjpg_streamer >/dev/null && exit 0
        /usr/bin/mjpg_streamer -b \
            -i "/usr/lib/mjpg-streamer/input_memfd.so -t 0" \
            -o "/usr/lib/mjpg-streamer/output_http.so -p 8080"
    ) &
}

3. Moonraker may have no webcam registered at all. Check with
curl http://<printer>:7125/server/webcams/list — mine returned {"webcams":[]}, so
Mainsail/Fluidd showed nothing even with the stream up. Register it once (stored in the
database, survives updates):

curl -X POST http://<printer>:7125/server/webcams/item \
  -H "Content-Type: application/json" \
  -d '{"name":"Camera","service":"mjpegstreamer-adaptive","target_fps":15,
       "stream_url":"/webcam/?action=stream","snapshot_url":"/webcam/?action=snapshot"}'

The helper script's nginx config already proxies /webcam/ to 127.0.0.1:8080, so no
change is needed there — only the producer was missing.

[laffsj]

I apologize if this has already been answered and I didn't understand; my English is terrible, and I use Google Translate.

In the part I mentioned: One thing I noticed is that, when performing the input shaper calibration, the console ends with the commands: Klipper state: Disconnect
Input Shaper Calibration complete!

The SAVE_CONFIG command will update the printer's configuration file with these parameters and restart the printer.

Now, more messages appear:
{"code":"key61, "msg":"Unknown command:LOAD_AI_SET_AI_CONTROL_PREFER", "values": ["LOAD_AI_SET_AI_CONTROL_PREFER"]}
{"code":"key61, "msg":"Unknown command:FILAMENT_RACK_MODIFY", "values": ["FILAMENT_RACK_MODIFY"]}
{"code":"key61, "msg":"Unknown command:BOX_ENABLE_AUTO_REFILL", "values": ["BOX_ENABLE_AUTO_REFILL"]}
{"code":"key61, "msg":"Unknown command:BOX_SET_PRE_LOADING", "values": ["BOX_SET_PRE_LOADING"]}
Klipper state: Disconnect
Input Shaper Calibration complete!

The SAVE_CONFIG command will update the printer's configuration file with these parameters and restart the printer.

Would this be an error? Was there a fix for this? If you could explain, I would appreciate it.