I am having trouble connecting my JCZ board (LMCV4) to LightBurn.
• Machine: Fiber laser JPT M7 60W
• Lens: 150mm
• OS: Windows 10 (64-bit)
• Board: FBL1-B-LV7 (shows as V4-Fiber-M)
• Software: LightBurn (latest version installed)
Issue:
When I connect the machine, it sometimes recognizes but often shows error:
“Unrecognized board signature: 0000238409002002”
Questions:
1. Is my board an original JCZ LMCV4 or not?
2. Does this board fully support LightBurn?
3. How to properly fix the “Unrecognized board signature” error?
4. Should I use different drivers (which version)?
Any help or guidance would be greatly appreciated!
“Unrecognized board signature” is not an error, but a message that means LightBurn can talk to the controller, but we have not previously seen its ID, and don’t know 100% what to call it internally.
We just treat them as a USB-LITE board, and usually that works.
Can you see a pattern, when it works, and what doesn’t work? @letien00 , you seem to have the same control board. Did you experience the same?
If one of you could open EZCAD2 and send us screenshots of all tabs of the Configuration Parameters (F3), that would help us associate the board signature to the correct device.
I’ve captured the requested screenshots from EZCAD2 showing the Configuration Parameters (F3). Please find them attached below.
Hopefully, this will help you associate the board signature with the correct device. Let me know if you need me to provide screenshots of other tabs or run additional checks.
Thank you for the screenshot. This tells us, that it is an USB-Lite board, and our default selection of that device type should work, despite the “Unrecognized board signature” message.
At this point, I don’t think, that it’s a driver issue, because you’re able to connect “sometimes”. It might still be worth reviewing this and performing the Zadig driver swap method
I have no way of judging that if we don’t know which laser you are using. But if you have loaded the manufacturer’s configuration file, we can assume that the settings are correct.
As mentioned, LightBurn assumes “USB-Lite” when the board signature is unknown. This is proven to be the correct assumption in this case, because that’s how it reported to EZCAD2.
If you can tell us whether everything is working (apart from the “Unrecognized board signature” message), then we can add the signature, and the message will no longer appear.
If something is not working, please explain what it is. Then we can evaluate whether it requires another device type or other settings are incorrect.
What works and what doesn’t?