kobra 3 v1 - error code 11412 MCU Disconnected from host issue #398
Description
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Describe the bug
so i print vary so often but lately my printer (the kobra 3 + ace pro) with this custom firmware. just out of the blue it pops up with this error randomly regardless of if its shacking or not.
"""
code: 11412
MCU Disconnected from host"
"""
it can't be a bad connection to the MCU because it's too random.
I did use a test version before this started happing.
I had a chat with Claud.ai and even gave it the log and password so it can diagnose what's happing and it thinks the firmware on the MCU might be corrupt. is there any way to fix this via ssh into the printer and run some commands to reflash the MCU to set it back to a fix state or something. i cant have the printer keep randomly spit this error when I'm trying to print something because it needs me to shut off power then turn it on again and that can mess with the quality and strength of important prints.
A clear and concise description of what the bug is, and what you expected to happen.
Printer setup
- Printer version "kobra 3 + ace pro"
- Firmware version "v2.4.5_1.4.0_1.4.0_release"
- Rinkhals version "20260105_01"
Repro steps
Steps to reproduce the behavior:
- any time I do 'bootup/during printing/any time I interact with it, it has a chance to randomly trigger'
- See error
Debug bundle / Logs
"i will post a log bundle when it acts up again"
Generate a debug bundle to collect logs on your printer before posting a new issue.
Instructions are available here: https://jbatonnet.github.io/Rinkhals/guides/generate-debug-bundle/